- 2Signification: falsefallacious wrong faulty invalidunsound untenable senseless unfounded
- 3Signification: stateunsound impaired imperfect sick
- 4Signification: dangerousrisky hazardous treacherous perilouschancy unreliable unsubstantial unsound
- 5Signification: flimsyinsubstantial weak fragile frangiblebreakable infirm unsound
- 6Signification: impaireddefective crazed demented diseasedill unhealthy unwholesome unsound
- 7Signification: behaviourunsound senseless absurd foolish nonsensicaldangerous reckless perilous mad
- 8Signification: unreliableunsound tricky false treacherousfraudulent unscrupulous crooked lying
- 9Signification: propertyunsound defective deteriorated yieldingsoft friable rotten
- 10Signification: unsteadywobbly loose unsound insecuretottering rickety precarious shaky
- 11Signification: illogicalunsound fallacious preposterous inconceivableinconsistent specious untenable irrational