Bizarre (adjective) — غريب / شاذ المظهر: Strikingly strange or unusual — so odd it stops the eye, yet still a fact you can measure Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Strange or unusual.
Strange or unusual; belonging particularly to one.
Strikingly strange or unusual.
Departing from the recognized or customary character, practice, or style; unconventional, peculiar, or irregular in behavior or design
strangeoddcuriousunconventional
Wildly unreasonable, illogical, or inappropriate; contrary to reason or common sense