Search Dictionary
Definition of insaneness

insaneness

/ɪnˈseɪn.nəs/
in · sane · ness
Adverb:insanely
•
Adjective:insane
JUMP TO:

insaneness Lexical Profile

insaneness Game Scores & Validity

• noun

1

Extreme foolishness, irrationality, or utter absurdity in behavior or circumstances.

Example

"Looking back, we laughed at the sheer insaneness of attempting to hike the mountain peak during a winter blizzard."

2

The state or quality of being mentally deranged or of unsound mind; madness or insanity.

Example

"The defense attorney argued that the defendant's temporary insaneness prevented him from understanding the consequences of his actions."

Synonyms
View all synonyms for insaneness
Antonyms
View all antonyms for insaneness

Word Nuance & Usage

In standard English, "insanity" is overwhelmingly preferred over "insaneness," which is rare and typically used only for stylistic emphasis.

• Rhymes for insaneness

• Nearby Words

inrush
insane
insanely
insaneness
insanitary
insanity
insatiable

Cite this Entry

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