immediately; at once urgently or insistently
WordReference Random House Learner's Dictionary of American English © 2026
in•stant•ly /ˈɪnstəntli/USA pronunciation
adv.
WordReference Random House Unabridged Dictionary of American English © 2026- immediately;
at once:He was killed instantly in the crash.
in•stant•ly
(in′stənt lē),USA pronunciation adv.
conj.
- immediately;
at once. - urgently.
conj.
- as soon as;
directly:I recognized her instantly she entered the room.
- 1375–1425; late Middle English; see instant, -ly
- 1.See corresponding entry in Unabridged forthwith. See immediately.
Collins Concise English Dictionary © HarperCollins Publishers::
'instantly' also found in these entries (note: many are not synonyms or translations):
access
- beck
- catch
- depressurize
- flash
- freeze
- immediately
- instant
- momentarily
- outright
- quantum teleportation
- shot
- spot
- stopwatch
- strike
- visible