conspicuously or grossly unconventional or unusual
e.g. restaurants of bizarre design--one like a hat, another like a rabbit
e.g. famed for his eccentric spelling
e.g. a freakish combination of styles
e.g. his off-the-wall antics
e.g. the outlandish clothes of teenagers
e.g. outre and affected stage antics
Synonym: bizarre eccentric freakish freaky flaky flakey gonzo off-the-wall outlandish