unsound
adjective
[ ʌnˈsaʊnd ]
• not safe or robust; in poor condition.
• "the tower is structurally unsound"
Similar:
rickety,
flimsy,
shaky,
wobbly,
unstable,
tottery,
defective,
disintegrating,
crumbling,
decaying,
broken,
broken-down,
damaged,
rotten,
ramshackle,
insubstantial,
jerry-built,
unsafe,
unreliable,
dangerous,
rumpty,
• not based on sound or reliable evidence or reasoning.
• "this line of argument is unsound"
Similar:
untenable,
flawed,
defective,
faulty,
ill-founded,
flimsy,
weak,
shaky,
unreliable,
questionable,
dubious,
tenuous,
suspect,
illogical,
irrational,
unfounded,
ungrounded,
unsubstantiated,
unsupported,
specious,
hollow,
spurious,
false,
fallacious,
fallible,
erroneous,
wrong,
sophistic,
casuistic,
iffy,
dodgy,
