atypical

US /ˌeɪˈtɪp.ɪ.kəl/
UK /ˌeɪˈtɪp.ɪ.kəl/
"atypical" picture
1.

非典型的な, 異例の

not representative of a type, group, or class; unusual.

:
His response was atypical of his usual calm demeanor.
彼の反応は、いつもの落ち着いた態度とは異なっていた
The patient presented with atypical symptoms.
患者は非典型的な症状を示した。