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: bizarreeccentricfreakishflakyflakeygonzooff-the-walloutlandishoutre

2. strange and somewhat frightening

e.g. the whole experience was really freaky