apropos

(a) of an appropriate or pertinent nature
(r) at an opportune time
- your letter arrived apropos
timely, well-timed, seasonably,
(r) introducing a different topic; in point of fact
- incidentally, I won't go to the party
by the bye, by the way, incidentally,

Synonyms

timely well-timed seasonably by the bye by the way incidentally

Antonyms

malapropos

See also

appropriate

Words of close approximity