1 precise, accurate, correct, faithful, true, faultless, identical, literal, perfect, consummate:
This is an exact copy of the original. Were those her exact words?
2 careful, meticulous, strict, rigorous, accurate, exacting, severe, fastidious, scrupulous, thorough, painstaking, rigid, punctilious:
He has conducted the most exact experiments.
3 demand, extort, require, enforce, insist on or upon, extract, impose, wrest, compel, enjoin, call for, requisition, claim:
The chief exacted tribute before releasing the prisoners.