How to Identify Adjectives in a Sentence

Finding adjectives is easy until the sentence stops cooperating. The tired dog slept gives its adjective up immediately. The dog looked tired after the running water woke it has three candidates and only two adjectives.

Three tests will settle almost any case. Use them in order.

Test 1: the very test

Put very in front of the word. If the phrase still works, the word is gradable and almost certainly an adjective.

The test has one blind spot: absolute adjectives. Dead, unique, final, and impossible name states with no degrees, so they reject very while still being adjectives. If a word fails this test, run test 2 before ruling it out.

Test 2: the two-slot test

A true adjective can usually sit in both of these slots and keep pointing at the same noun:

• Directly before the noun: the final answer
• After a linking verb: the answer is final

Nouns acting as modifiers fail the second slot every time. A bus stop never becomes the stop is bus. That single failure is what separates kitchen table and stone wall from real adjectives.

Some adjectives are restricted to one slot – main, utter, and former only work before a noun; asleep, afraid, and aware only work after a verb – so a word that passes one slot convincingly and sounds odd in the other may still be an adjective. Combine this test with the first rather than trusting it alone.

Test 3: the comparison test

Most adjectives can be compared, either with -er/-est or with more/most: bright, brighter, brightest; reliable, more reliable, most reliable. Nouns cannot. Verbs cannot. If a word takes comparison naturally, it is an adjective.

The four cases that fool people

Participles. Words ending in -ing and -ed may be adjectives or parts of verbs. Ask what the word is doing. In the running water, running describes the water – adjective. In the water is running, it is the verb. The giveaway is that an adjective can be replaced by another adjective (the cold water) without breaking the sentence.

Predicate adjectives. After linking verbs – be, seem, become, feel, look, taste, smell, sound, remain – the adjective describes the subject, not the verb. In the milk smells sour, sour is an adjective describing the milk. Writing the milk smells sourly would describe the milk’s technique for smelling.

Adverbs wearing -ly. The ending is not a part of speech. Friendly, lovely, lonely, silly, and ugly are adjectives. Meanwhile fast, hard, late, and early serve as both without changing form.

Possessives and demonstratives. My, your, this, and those are modifying nouns and count as adjectives in most classroom grammars, though many modern grammars file them as determiners. Either label is defensible; what matters is recognising that they are doing adjective work.

Practice

Identify every adjective. Answers below.

1. The old stone bridge looked unsafe after the heavy rain.
2. Her first response seemed sharp, but she was simply tired.
3. Three broken chairs sat in the empty dining room.
4. That Italian coffee tastes stronger than this one.
5. The sleeping child felt warm, so nobody woke her.

Answers

If a word resists all three tests, it is probably not an adjective, however descriptive it feels. Function decides, not flavour.

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