uncharacteristic

Adjective

Not characteristic / Out of character; behavior that is unusual for a given person or thing.

Japanese Meaning

通常の特徴と一致しない、普段の性質に反する / その人物や物に通常備わる特性とは異なり、例外的な状態や行動を示す

His uncharacteristic calmness during the storm reassured the team.

嵐の最中に見せた彼の普段らしくない冷静さがチームを安心させた。

Sense（1）

Not characteristic

Sense（2）

Out of character; behavior that is unusual for a given person or thing.

more uncharacteristic

（ comparative ）

most uncharacteristic

（ superlative ）