Meaning of INSTANTANEOUS in English

adj. Function: adjective

done, occurring, or acting without any perceptible duration of time FF1C; instantaneous answers to tough questions FF1E;

Synonyms: hair-trigger, immediate, instant; compare QUICK 2

Related Words: spontaneous; fast, quick, rapid; momentary, transitory

Contrasted Words: late, tardy; slow, sluggish

Merriam Webster. Collegiate thesaurus English dictionary.      Английский энциклопедический толковый словарь тезауруса.