Precisely agreeing with a standard, a fact, or the truth; perfectly conforming; neither exceeding nor falling short in any respect; true; correct; precise; as, the clock keeps exact time; he paid the exact debt; an exact copy of a letter; exact accounts.

Habitually careful to agree with a standard, a rule, or a promise; accurate; methodical; punctual; as, a man exact in observing an appointment; in my doings I was exact.

Precisely or definitely conceived or stated; strict.

marked by strict and particular and complete accordance with fact; "an exact mind"; "an exact copy"; "hit the exact center of the target"