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Definition of unsoundness
unsoundness
/ʌnˈsaʊndnəs/
un · sound · ness
Adverb:unsoundly
•Plural:unsoundnesses
•Adjective:unsound
unsoundness Lexical Profile
CEFR
C1
Grade
11
Tier
2
Usage
Rare
Syllables
3
unsoundness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The quality or state of being logically flawed, invalid, or poorly reasoned, as of an argument, theory, or policy.
Example
"The professor pointed out the fundamental unsoundness of the student's hypothesis."
2
The condition of being physically weak, defective, decayed, or structurally unstable.
Example
"The inspector condemned the old bridge due to the severe unsoundness of its timber supports."
3
The state of having poor physical or mental health; infirmity or disease (especially in legal contexts regarding the mind, or veterinary contexts regarding horses).
Example
"The defense attorney entered a plea based on the temporary unsoundness of the defendant's mind."
Synonyms
View all synonyms for unsoundness Antonyms
View all antonyms for unsoundness• Rhymes for unsoundness
Cite this Entry
Wordmom. (2026). Definition of Unsoundness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unsoundness