punctual

Etymology

Borrowed from Medieval Latin pūnctuālis (“relating to a point”), from Late Latin pūnctus (“point”) + -ālis (adjective suffix).

adj

1. Prompt; on time.
   1. (of an event) Happening at the appointed time
   2. (of a person) Acting at the appointed time
      Luis is never late; he's the most punctual person I know.
2. (chiefly mathematics) Existing as a point or series of points
3. (linguistics) Expressing momentary action that has no duration
4. (nonstandard, Euro-English) Periodic; occasional.
   The management of the above mentioned feed sectors is subject to close co-operation with the Member States through […] punctual expert groups meetings where appropriate.
5. (dated) Observing trivial points; punctilious.