unsound

Definitions of unsound
1

adj not in good condition; damaged or decayed

“an unsound foundation”
Synonyms:
corroded
eaten away as by acid or oxidation
decayed, rotted, rotten
damaged by decay; hence unsound and useless
Antonyms:
sound
in good condition; free from defect or damage or decay
solid, strong, substantial
of good quality and condition; solidly built
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adj containing or based on a fallacy

“an unsound argument”
Synonyms:
fallacious
invalid
having no cogency or legal force

adj of e.g. advice

Synonyms:
undependable, unreliable
not worthy of reliance or trust

adj suffering from severe mental illness

“of unsound mind”
Synonyms:
mentally ill, unstable
insane
afflicted with or characteristic of mental derangement

adj physically unsound or diseased

“an unsound limb”
unsound teeth”
Synonyms:
bad, unfit
unhealthy
not in or exhibiting good health in body or mind

adj not sound financially

unsound banking practices”
Synonyms:
broken
physically and forcibly separated into pieces or cracked or split
damaged
harmed or injured or spoiled
unfit
not in good physical or mental condition; out of condition
unhealthy
not in or exhibiting good health in body or mind
injured
harmed
bad, high-risk, risky, speculative
not financially safe or secure
long
involving substantial risk
wildcat
outside the bounds of legitimate or ethical business practices
unwholesome
detrimental to physical or moral well-being
Antonyms:
sound
financially secure and safe
unbroken
not broken; whole and intact; in one piece
undamaged
not harmed or spoiled; sound
fit
physically and mentally sound or healthy
healthy
having or indicating good health in body or mind; free from infirmity or disease
uninjured
not injured physically or mentally
dependable, good, safe, secure
financially sound
healthy
financially secure and functioning well
solid
financially sound
stable
firm and dependable; subject to little fluctuation
wholesome
conducive to or characteristic of physical or moral well-being
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