/ ˈkjʊəriəs; NAmE ˈkjʊr-/ adjective
1.
curious (about sth) | curious (to do sth) having a strong desire to know about sth
SYN inquisitive :
They were very curious about the people who lived upstairs.
I was curious to find out what she had said.
Everyone was curious as to why Mark was leaving.
He is such a curious boy, always asking questions.
2.
curious (that ... ) strange and unusual :
There was a curious mixture of people in the audience.
It was a curious feeling, as though we were floating on air.
It was curious that she didn't tell anyone.
► curi·ous·ly adverb :
'Are you really an artist?' Sara asked curiously.
His clothes were curiously old-fashioned.
Curiously enough, a year later exactly the same thing happened again.
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WORD ORIGIN
Middle English : from Old French curios , from Latin curiosus careful, from cura care. Sense 2 dates from the early 18th cent.