1. (adjective) containing or based on a fallacy

• fallacious

2. (adjective) suffering from severe mental illness

• mentally ill
• unstable

3. (adjective) physically unsound or diseased

• bad
• unfit

1. (adjective) not in good condition; damaged or decayed

• corroded
• decayed
• rotted
• rotten

2. (adjective) not sound financially

• bad
• high-risk
• risky
• speculative
• long
• wildcat

3. (adjective) containing or based on a fallacy

• invalid

4. (adjective) suffering from severe mental illness

• insane

5. (adjective) physically unsound or diseased

• unhealthy

6. (adjective) of e.g. advice

• undependable
• unreliable

1. (adjective) not sound financially

• broken
• damaged
• injured
• unfit
• unhealthy
• unwholesome

1. (adjective) not in good condition; damaged or decayed

• unsoundness

2. (adjective) not sound financially

• unsoundness

3. (adjective) containing or based on a fallacy

• fallaciousness
• fallacy
• false belief
• unsoundness

4. (adjective) suffering from severe mental illness

• instability
• unstableness
• unsoundness

5. (adjective) physically unsound or diseased

• softness
• unfitness
• unsoundness

1. (adjective) not in good condition; damaged or decayed

• sound

2. (adjective) not sound financially

• sound