Word form : adjective

English meaning(1): different from what is usual or normal

Vietnamese meaning(1): khác với những gì thường lệ hoặc bình thường,bất thường

English meaning(2): not commonly encountered

Vietnamese meaning(2): không thường gặp,không phổ biến

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Unusually

Word form :  adverb

English meaning(1): used to say that something is not what usually happens

Vietnamese meaning(1): dùng để nói cái gì đó không thường xảy ra

English meaning(2): to a remarkable degree or extent

Vietnamese meaning(2): đến một mức độ hoặc mức độ đáng chú ý,xuất sắc

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Collocation

adjective: appear, be, look, seem | become | consider sth

Example: It was considered unusual for a gentleman's son to study medicine.

adverb: decidedly, distinctly, extremely, highly, particularly, really, very,by no means, hardly, not at all,a bit, fairly, a little, pretty, quite, rather, relatively, slightly, somewhat |enough, sufficiently

Example: The arrival of a taxi was unusual enough; an unknown woman getting out of it was sensational.

prep: for

Example:  It's unusual for a woman to do this job.