- 1 correct in every detail synonym precise She gave an exact description of the attacker. an exact copy/replica of the painting We need to know the exact time the incident occurred. What were his exact words? She's in her mid-thirties—thirty-six to be exact. The colors were an exact match. He started to call me at the exact moment I started to call him (= at the same time). The two men were exact contemporaries at college. Her second husband was the exact opposite of her first (= completely different).
- 2(of people) very accurate and careful about details synonym meticulous, precise
- 3(of a science) using accurate measurements and following set rules synonym precise Assessing insurance risk can never be an exact science.
- noun [uncountable]
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