nutso
/ˈnʌtsoʊ/
noun
Meaning
Crazy person; crackpot or lunatic.
Craziness; insanity.
adjective
Meaning
Crazy, insane.
Fraught or out of control.
Obsessed; overly enthusiastic.
Ridiculous; unbelievable or silly.
adverb
Meaning
Madly; extremely or obsessively.
In a crazy manner.