unsound

“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; show more antonyms...

“an unsound argument”

“of unsound mind”

“an unsound limb”

“unsound teeth”

“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; show more antonyms...

DEFINITIONS OF: unsound