Student Thesaurus

One entry found for instantaneous.
Entry Word: instantaneous
Function: adjective
Text: done or occurring without any noticeable lapse in time <the thunder following the lightning was nearly instantaneous>
Synonyms immediate, instant, straightaway
Related Words summary; fast, hit-and-run, prompt, quick, rapid, speedy, swift
Near Antonyms dilatory, tardy; slow, sluggish; prolonged, protracted; deferred, delayed