[adjective] [+ to infinitive] - different from others of the same type in a way that is surprising, interesting or attractiveIt's unusual to have adult conversation like that with such a young child.I was actually on time, which is unusual for me.She was wearing a very unusual necklace - I had to remark on it."Do you like the new settee?" "Very much, it's most unusual."
UNUSUAL
Meaning of UNUSUAL in English
Cambridge English vocab. Кембриджский английский словарь. 2012