modified
Insane
demented, deranged, psychotic; see insane 1.
Foolish
irrational, idiotic, daft; see stupid 1.
noun
maniac, demoniac, insane person; see madman, neurotic.
See lunatic in Webster's New World Roget's A-Z Thesaurus II
Afflicted with or exhibiting irrationality and mental unsoundness:
So senseless as to be laughable:
A person regarded as strange, eccentric, or crazy:
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