Search Dictionary
Definition of instantaneously

instantaneously

/ˌɪn.stənˈteɪ.ni.əs.li/
in · stan · ta · ne · ous · ly
Adjective:instantaneous
JUMP TO:

instantaneously Lexical Profile

instantaneously Game Scores & Validity

• adverb

1

In a single instant; immediately and without any perceptible delay or elapsed time.

Example

"Modern fiber-optic networks allow data to be transmitted almost instantaneously across continents."

Synonyms
View all synonyms for instantaneously
Antonyms
View all antonyms for instantaneously

Word Nuance & Usage

While often used interchangeably with "instantly" or "immediately," "instantaneously" emphasizes the absence of any perceptible time interval between cause and effect (especially in scientific or technical contexts), whereas "immediately" simply means without delay.

• Rhymes for instantaneously

• Nearby Words

instance
instant
instantaneous
instantaneously
instantly
instate
instead

Word Origin & Etymology

Formed in the mid-17th century from the adjective "instantaneous" plus the adverbial suffix "-ly," ultimately tracing back to Medieval Latin "instantaneus" and Latin "instans" ("present, urgent"), from "instare" ("to stand upon, press closely").

Cite this Entry

Wordmom. (2026). Definition of Instantaneously. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/instantaneously
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.