immediately 1 antonyms and opposites of immediately. Adv — Right away, without any delay. Synonyms for immediately forthwith now right away straightaway tout de suite directly anoon ASAP at once by and by forthwithal incontinently instanter instantly on the nail no sooner said than done on the spot on the spur of the moment pronto right now right off soon stat this instant toot sweet yesterday Antonyms for immediately eventually ← Back to the full definition of immediately
