Synonyms of rapid in English:

rapid


See definition of rapid

adjective

1‘his rapid rise to stardom’

SYNONYMS
quick, fast, swift, speedy, high-speed, expeditious, express, brisk, lively, prompt, flying, fleeting, lightning, meteoric, overnight, whirlwind, fast-track, whistle-stop
sudden, instantaneous, immediate, instant, hurried, hasty, abrupt, sharp, precipitate, breakneck, headlong
informal p.d.q., pretty damn quick
literary fleet
rare alacritous, volant
ANTONYMS

slow, leisurely