apples and oranges

Noun

Meaning

(idiomatic) A comparison of items that, however categorically similar, is inapt; an incompatible equation.
It's apples and oranges. You can't convert square meters to linear inches.

Used other than figuratively or idiomatically: see apples,‎ and,‎ oranges.

Source: en.wiktionary.org

Synonyms

night and day chalk and cheese

Antonyms

apples to apples apples to apples, oranges to oranges apples with apples oranges with oranges

Related terms

mix apples and oranges

Close letter words and terms

applemint applemonger apples apples and pears apples for apples apples to apples