ex·act·ly 
/ɪgˈzæktli/ adverb
/ɪgˈzæktli/ adverb [more exactly; most exactly] 1 — used to stress that something is accurate, complete, or correct ▪ The mansion has exactly 33 rooms. ▪ I know exactly where they went. ▪ The two rooms are exactly the same size. ▪ When exactly are they supposed to arrive? = Exactly when are they supposed to arrive? 2 informal — used in speech to say that what someone has said is exactly correct or that you agree with it completely ▪ “So you think we should take an earlier flight?” “Exactly.” [=yes, that's exactly what I think] ▪ “It's just not worth the trouble.” “Exactly.” — see also not exactly (below) 3 : in a correct or precise way
▪ The levers need to be exactly positioned. : in a way that agrees completely with what is needed ▪ You need to do exactly [=just, precisely] as you're told. 4 : in every way
▪ That was exactly the wrong thing to do. ▪ He is exactly what a good student ought to be.
▪ The levers need to be exactly positioned. : in a way that agrees completely with what is needed ▪ You need to do exactly [=just, precisely] as you're told.
▪ That was exactly the wrong thing to do. ▪ He is exactly what a good student ought to be.
not exactly
informal 1 — used in speech as a mild way of saying “no” especially to indicate that what someone has said is not completely correct or true ▪ “He's your boss, isn't he?” “Not exactly.” ▪ “Did everything go the way you planned it?” “Not exactly.” 2 — used as a humorous or ironic way to say “not” ▪ He's not exactly the smartest guy I've ever met. [=he is not very smart]
