Thesaurus.com
synonyms
  • definitions

instantaneous

see definition of instantaneous
  • adjimmediate
Relevance ranks synonyms and suggests the best matches based on how closely a synonym’s sense matches the sense you selected.
Relevance
A-Z
Length
-
+

Synonyms for instantaneous

adj immediate
  • rapid
  • spontaneous
  • transitory
  • direct
  • fast
  • hair-trigger
  • in a flash
  • instant
  • momentary
  • quick

Antonyms for instantaneous

  • delayed
  • eventual
  • late
  • later
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

More words related to instantaneous

brief

adjective. short in time

briefer

adjective. short in time

instant

adjective. immediate, urgent

momentary

adjective. brief, fleeting

presto

adjective. quickly

prompt

adjective. early, responsive
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
  • PREVIOUS
  • NEXT