Word.ws English Dictionary

Synonyms of instantaneous

6 similar words · 5 opposite words

Another word for instantaneous is instant. Other synonyms of instantaneous are immediate. The opposite of instantaneous is delayed.

Synonyms and similar words for instantaneous

adjectiveOccurring, arising, or functioning without any delay; happening within an imperceptibly brief...

Opposite of instantaneous

adjectiveMore antonyms

Meaning of instantaneous

  1. adjective Occurring, arising, or functioning without any delay; happening within an imperceptibly brief period of time.

Full definition of instantaneous

instantaneous in other languages

Questions about synonyms of instantaneous

What is another word for instantaneous?
Instantaneous has 6 synonyms on Word.ws, such as instant and immediate.
What is the opposite of instantaneous?
The opposite of instantaneous is delayed. Other antonyms of instantaneous are gradual.
What does instantaneous mean?
Instantaneous means occurring, arising, or functioning without any delay; happening within an imperceptibly brief period of time.

Source and license

Adapted from Wiktionary: instantaneous (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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