Search Dictionary
Definition of unobservable

unobservable

/ˌʌnəbˈzɜːrvəbəl/
un · ob · serv · a · ble
Adverb:unobservably
•
Plural:unobservables
JUMP TO:

unobservable Lexical Profile

unobservable Game Scores & Validity

• adjective

1

Incapable of being seen, noticed, detected, or measured, either by the human senses or by scientific instruments.

Example

"Dark matter remains directly unobservable by conventional telescopes, though its gravitational effects are evident."

Synonyms
View all synonyms for unobservable
Antonyms
View all antonyms for unobservable

• noun

1

In science and philosophy, a theoretical entity, state, or variable whose existence is postulated to explain phenomena but cannot be directly observed or measured.

Example

"Philosophers of science have long debated whether theoretical unobservables such as quarks and fields should be treated as real entities or merely useful predictive tools."

Antonyms
View all antonyms for unobservable

• Rhymes for unobservable

• Nearby Words

unobjective
unobliging
unobscured
unobservable
unobservant
unobserved
unobstructed

Cite this Entry

Wordmom. (2026). Definition of Unobservable. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unobservable
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.