52 Adjectives That Start With J
J is a small letter with two unexpected concentrations. Eight of the words below mean some form of cheerful — jolly, jovial, jocular, jocose, jocund, jubilant, joyful, joyous — and another 8 come from the Latin words for law and judgement. That is sixteen of the letter from two ideas; the rest scatter, and the table below is where most of the useful ones are.
This page lists 52 adjectives that start with J, each with its meaning and a short example. The table is the reference; everything after it is a selection from the same 52 words. Every entry has an adjective headword in Merriam-Webster or Oxford: no participles borrowed from verbs, and no colour nouns — which is why jet-black is here and jade-green, a noun in both, is not.
All 52 adjectives, with meanings and examples
The full reference. Everything below this table is a cut of it, chosen for a particular job.
| Adjective | What it means | In use |
|---|---|---|
| jaded | worn out, and no longer able to take pleasure in it | a jaded reviewer |
| jagged | with a rough, sharply uneven edge | a jagged tear |
| jam-packed | filled to the point where nothing more will fit | a jam-packed hall |
| jammy | luckier than deserved, in British use | a jammy equaliser |
| jangly | unsettlingly harsh and metallic | a jangly guitar line |
| janitorial | of cleaning and building maintenance | janitorial duties |
| jarring | clashing badly enough to be felt | a jarring cut |
| jaundiced | soured by resentment or long experience | a jaundiced view |
| jaunty | brisk and pleased with itself | a jaunty stride |
| jaw-dropping | astonishing enough to stop the conversation | a jaw-dropping figure |
| jazzy | bright and showy in pattern | a jazzy tie |
| jealous | afraid of losing what one has to a rival | a jealous colleague |
| jejune | thin and unsatisfying in substance | a jejune argument |
| jellied | set into a firm wobbling mass | jellied eels |
| jerky | moving in sudden irregular bursts | a jerky pan |
| jerry-built | put up cheaply and badly | a jerry-built extension |
| jet-black | of the deepest black there is | jet-black hair |
| jingoistic | aggressively and boastfully patriotic | jingoistic coverage |
| jinxed | carrying bad luck that keeps arriving | a jinxed season |
| jittery | nervous, and showing it in the body | a jittery market |
| jobbing | taking work as it comes rather than by post | a jobbing gardener |
| jobless | without paid work | a jobless month |
| jocose | given to joking, in a formal register | a jocose footnote |
| jocular | habitually humorous in manner | a jocular greeting |
| jocund | merry and light-hearted, in literary use | a jocund company |
| joint | held or done by two or more together | a joint account |
| jointed | made in sections that move against each other | a jointed doll |
| jointless | made in one piece, with nothing to come apart | a jointless casting |
| jolly | cheerful in a loud and sociable way | a jolly crowd |
| journalistic | of newspapers and reporting | journalistic shorthand |
| jovial | warmly and easily good-humoured | a jovial host |
| jowly | having heavy, loose flesh at the jaw | a jowly profile |
| joyful | very happy, and showing it | a joyful return |
| joyless | offering no pleasure at all | a joyless victory |
| joyous | full of joy, in literary use | a joyous week |
| jubilant | triumphantly and openly delighted | a jubilant dressing room |
| judgemental | too quick to condemn | a judgemental silence |
| judicial | of a court or a judge | judicial review |
| judicious | showing good judgement | a judicious cut |
| jugular | of the great veins of the neck | the jugular vein |
| juicy | wet and fleshy to bite, or scandalous and welcome | a juicy pear |
| jumbled | mixed into disorder | a jumbled drawer |
| jumbo | very much larger than standard | a jumbo pack |
| jumpy | starting at any sudden thing | a jumpy horse |
| junior | lower in rank or younger in years | a junior post |
| jural | of rights and obligations as law defines them | jural relations |
| juridical | of the law and how it is applied | a juridical question |
| just | giving what is deserved, by a defensible standard | a just settlement |
| justifiable | defensible, whatever anyone thinks of it | a justifiable delay |
| justified | done for a good reason | a justified refusal |
| juvenile | of young people, or childish in an adult | juvenile humour |
| juxtaposed | placed side by side so the contrast shows | juxtaposed panels |
The twenty most useful
If you take twenty words from this page, take these — the ones that do work no other word on the list quite does.
- jaded — exhaustion that has turned into indifference, which tired never covers
- jarring — the exact word for something that clashes rather than merely fails
- jejune — too simple to be interesting, in one formal word
- judicious — praise for sound judgement, in a person or in what they decided
- jaundiced — a view soured by experience, with the cause built into the word
- jubilant — delight that has stopped being private
- jocular — humour as a settled manner; jocose is its more formal twin
- jumbled — disorder that came from carelessness rather than design
- jinxed — bad luck treated as a pattern, which is what makes it useful
- juxtaposed — the technical word for putting two things together to make the contrast do the work
- jerry-built — cheap construction, with the blame included
- jittery — nerves showing in the body rather than in the face
- jaunty — confidence in the bearing, whether in the walk or the hat
- joyless — the absence rather than the opposite, which is a harder criticism
- jagged — an edge that would cut, literally or in a line of prose
- jam-packed — fullness with a note of discomfort in it
- jingoistic — patriotism named as a fault, precisely and without hedging
- jumbo — size as a selling point, which is its whole tone
- juvenile — the insult, when said of an adult, and no other word lands it as neatly
- jobbing — for someone who works job to job rather than by appointment, as in a jobbing gardener
The positive ones
Praise-side words, and the letter’s strength. 8 of them mean some form of cheerful, which for a letter this small is remarkable — though they are not interchangeable: jocular is a manner, jubilant is a moment, and Oxford marks jocund and joyous literary.
jammy, jaunty, jocose, jocular, jocund, jolly, jovial, joyful, joyous, jubilant, judicious, juicy, just, justifiable, justified
The negative ones
Criticism-side words. Jaded and joyless are the two worth separating: the first describes someone who used to enjoy it, the second something nobody could.
jaded, jagged, jarring, jaundiced, jealous, jejune, jerky, jerry-built, jingoistic, jinxed, jittery, jobless, joyless, judgemental, jumbled, juvenile
Describing appearance
Appearance, and there is very little of it. Jowly is the only one of the fifty-two that describes a face, and it is not a compliment; the letter simply has no vocabulary for how people look.
jagged, jazzy, jet-black, jowly, jumbo
Common mistakes
| Pair | The difference that matters |
|---|---|
| judicious / judicial | Judicious means showing good judgement and can describe anybody. Judicial means belonging to a court or a judge. A judicious decision is a wise one; a judicial decision is one a judge made, wise or not. |
| jealous / envious | Envious — not on this page — is wanting what someone else has. Jealous is fearing to lose what you already have, which is why it fits relationships and envious fits possessions. Note that dictionaries record the overlap: Merriam-Webster gives envious as the first sense of jealous, so the split is a preference rather than a rule. |
| justifiable / justified | Almost the same word, and Oxford defines them almost identically. Where writers separate them, justifiable describes what could be defended if anyone asked, and justified what was in fact done for a good reason. Neither means proved right by the outcome. |
| juvenile / infantile | Both are insults when used of an adult, and they are not the same insult. Juvenile is behaviour belonging to a teenager; infantile — not on this page — is behaviour belonging to a baby, and it is the harder of the two. |
| judgemental / judgmental | Two spellings of one word, not two words. Oxford marks judgemental especially British and judgmental is the usual American form; both are correct, and the first is the entry used on this page. |
Related guides
- Adjectives for jobs — where jobless and jobbing sit in a fuller context.
- Adjectives for justice — expands just, judicial and juridical.
- Adjectives for judges — for judicious and judicial, which this page keeps apart.
- Adjectives for a jellyfish — for jellied and the wider vocabulary of the see-through.
- Adjectives for jeans — where jazzy, jet-black and jade-green get used.
- Adjectives for Jesus — a subject vocabulary this letter barely touches.
Checked against Merriam-Webster, the Chicago Manual of Style and the AP Stylebook. Spotted an error? Tell us — see our editorial policy.
