Introducing a different topic, in point of fact
English: by the way, by the bye, incidentally, apropos
aproposEnglish
apropos, by the bye, by the way, incidentally, seasonably
Adverb
At an opportune time
English: seasonably, timely, well-timed, apropos
Adjective
Of an appropriate or pertinent nature
English: apropos
Bahasa: tepat