Foolish behavior or a foolish action
An unconventional or extravagant, and often largely purposeless, building or structure
Lack of sense or meaning; silliness
The quality or condition of being inept
An instance of this
(Countable) An act that is stupid.
Something, such as an act or suggestion, that is considered stupid or foolish.
(Law) Unsoundness of mind sufficient to render a person unfit to maintain a contractual or other legal relationship or sufficient to warrant commitment to a mental health facility.
The definition of lunacy is the state of being insane or wild foolishness.
Smug stupidity; utter foolishness.
Extravagant foolishness or frivolity:
Find another word for silliness. In this page you can discover 25 synonyms, antonyms, idiomatic expressions, and related words for silliness, like: foolery, absurdity, craziness, folly, foolishness, goofiness, inaneness, inanity, ineptitude, puerility and senselessness.