madcap
adjective
[ ˈmadkap ]
• amusingly eccentric.
• "a surreal, madcap novel"
madcap
noun
• an eccentric or reckless person.
Similar:
eccentric,
crank,
madman/madwoman,
maniac,
lunatic,
psychotic,
oddity,
odd fellow,
character,
individual,
hothead,
daredevil,
crackpot,
oddball,
weirdo,
loony,
nut,
nutcase,
nutjob,
cuckoo,
nutter,
screwball,
wackadoo,
wackadoodle,
radge,
dingbat,