Atypical (adjective) — غير نمطي أو شاذ: Not representative of a type, group, or class; deviating from what is normal or expected; unusual or irregular; not conforming to the usual pattern Below are 6 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Not common or usual.
Deviating from what is normal, usual, or expected; not conforming to standard patterns
Unusually good; out of the ordinary.
irregularnon-standardanomalous
Deviating from what is normal, expected, or accepted; atypical, anomalous, or straying from a standard path or pattern
Not typical of a person's usual behaviour.
Not typical of a person or thing.
Out of the ordinary; rare.