odd vs curious

odd and curious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
odd	No	Yes	No	No
curious	No	Yes	No	No

As adjectives, odd and curious are synonyms defined as:

Other synonyms of odd include funny, peculiar, queer, rum, rummy, singular.

odd (adjective)	curious (adjective)
not divisible by two	eager to investigate and learn or learn more (sometimes about others' concerns)
an indefinite quantity more than that specified	beyond or deviating from the usual or expected
of the remaining member of a pair
beyond or deviating from the usual or expected
not used up
not easily explained