curiously
adv. manneradv. in a way that shows you are interested in something and want to learn more. It can also mean that something is strange or unusual.
adv. in a manner that demonstrates inquisitiveness or interest; alternatively, used to indicate that a situation is strange or unexpected.
The cat looked curiously at the moving shadow.
Curiously, the front door was unlocked even though the family had been away for a week.
The researchers looked curiously at the data, noting that the results contradicted every hypothesis they had formulated during the initial planning phase.
From Middle English curiusly, curyously, curiosly, curiouseliche, curyouslyche, equivalent to curious + -ly.
When used to mean 'strangely', it often functions as a sentence adverb at the start of a clause.