ETYM Latin exactus precise, accurate, p. p. of exigere to drive out, to demand, enforce, finish, determine, measure; ex out + agere to drive; cf. French exact. Related to Agent, Act.
Marked by strict and particular and complete accordance with fact.

ETYM French ponctuel (cf. Spanish puntual, Italian puntuale), from Latin punctum point. Related to Point.
Acting or arriving or performed exactly at the time appointed.

1. Having or made by a thin edge or sharp point; suitable for cutting or piercing
2. Keenly and painfully felt; as if caused by a sharp edge or point
3. Quick and forceful
4. Very sudden and in great amount or degree
5. Harsh; SYN. sharp-worded, tart.
6. (Music) Raised in pitch by one chromatic semitone

At the expected time; SYN. not late, not delayed.

At the proper time; SYN. duly.