PUNCTUAL

punctual, on time

(adjective) acting or arriving or performed exactly at the time appointed; “she expected guests to be punctual at meals”; “he is not a particularly punctual person”; “punctual payment”; “she is always on time for class”

Source: WordNet® 3.1

Adjective

punctual (comparative more punctual, superlative most punctual)

Prompt; on time.

(of an event) Happening at the appointed time

(of a person) Acting at the appointed time

(mathematics) Existing as a point or series of points

(linguistics) Expressing momentary action that has no duration

(nonstandard, Euro-English) Periodic; occasional.

(dated) Observing trivial points; punctilious.

Source: Wiktionary

Punc"tu*al, a. Etym: [F. ponctuel (cf. Sp.puntual, It. puntuale), from L. punctum point. See Point.]

1. Consisting in a point; limited to a point; unextended. [R.] "This punctual spot." Milton. The theory of the punctual existence of the soul. Krauth.

2. Observant of nice points; punctilious; precise. Punctual to tediousness in all that he relates. Bp. Burnet. So much on punctual niceties they stand. C. Pitt.

3. Appearing or done at, or adhering exactly to, a regular or an appointed time; precise; prompt; as, a punctual man; a punctual payment. "The race of the undeviating and punctual sun." Cowper. These sharp strokes [of a pendulum], with their inexorably steady intersections, so agree with our successive thoughts that they seem like the punctual stops counting off our very souls into the past. J. Martineau.

Source: Webster’s Unabridged Dictionary 1913 Edition