Bad / Stupid
stupidity - A lack of intelligence or the ability to think and understand clearly.
foolish - Lacking good sense or judgment; unwise.
loudmouth - Someone who speaks loudly and without thinking, often causing trouble or embarrassment.
imbecile - A person who behaves foolishly or lacks good judgment.
platitude - A trite or cliché saying that is expressed as if it were profound, but is actually banal.
silly - Showing a lack of logic, reason, or common sense; often in a playful or harmless way.
flaky - Unreliable or inconsistent in behavior, especially in keeping commitments.
sucker - A person who is easy to fool and cheat.
dull - Not bright, vivid, or shiny; lacking sharpness or luster.
knucklehead - A foolish or unintelligent person; someone who makes silly mistakes.
dysfunctional - Not operating normally or properly; broken or impaired in function.
moron - A person who acts foolishly or shows poor judgment — someone who makes silly or careless mistakes.