
Stupidity
Negative Connotation
Stupidity implies a harsh judgment and should be used carefully to avoid offending someone.
Calling his idea stupidity made him feel disrespected.
Self-Deprecation
Sometimes used humorously about oneself to admit a mistake without harsh feelings.
I forgot my keys again, what a moment of stupidity!
Momentary Lapse
Can refer to a temporary lack of judgment, not a permanent trait.
Her decision was a moment of stupidity, not her usual behavior.