1. conspicuously or grossly unconventional or unusual

e.g. restaurants of bizarre design--one like a hat, another like a rabbit
famed for his eccentric spelling
a freakish combination of styles
his off-the-wall antics
the outlandish clothes of teenagers
outre and affected stage antics

Synonym: bizarreeccentricfreakishfreakyflakyflakeyoff-the-walloutlandishoutre