Answer: zaniest

AnswerCrossword Clue
ZANIESTMost off-the-wall
ZANIESTMost madcap
ZANIESTMost outlandish
ZANIESTMost clownish.
ZANIESTMost foolish
ZANIESTMost like the Marx Brothers
ZANIESTLeading in ludicrousness
ZANIESTBest at buffoonery
ZANIESTMost Marxian?
ZANIESTMaximally wacky
ZANIESTMost kooky
ZANIESTMost out there
zaniestZANY, crazy or clownish
zaniestcrazily funny