situated, placed, or lying face to face with something else or each other, or in corresponding positions with relation to an intervening line, space, or thing

opposite ends of a room.

contrary or radically different in some respect common to both, as in nature, qualities, direction, result, or significance; opposed

opposite sides in a controversy; opposite directions.

being the other of two related or corresponding things

friendly with many members of the opposite sex.

Botany .

situated on diametrically opposed sides of an axis, as leaves when there are two on one node.

having one organ vertically above another; superimposed.

adverse or inimical.

a person or thing that is opposite or contrary.

an antonym.

Archaic . an opponent; antagonist.

across from; facing

The guest of honor sat opposite me at the banquet.

in a role parallel or complementary to

He has played opposite many leading ladies.

on opposite sides.

on the opposite side

I was at one end and she sat opposite.

to the opposite side; in the opposite direction

I went to the left balcony, and he went opposite.

adjective

compatible , like , similar

noun

likeness , same , similarity

adjective

adverse , antagonistic , antipodal , antipodean , antithetical , contradictory , contrapositive , contrary , contrasted , corresponding , counter , crosswise , diametric , diametrically opposed , different , differing , dissimilar , diverse , facing , flip-side , fronting , hostile , inconsistent , independent , inimical , inverse , irreconcilable , obverse , opposed , ornery * , paradoxical , polar , repugnant , retrograde , reverse , reversed , separate , unalike , unconnected , unrelated , unsimilar , violative , vis--visnotes:contrary describes something that contradicts a proposition , converse is used when the elements of a proposition are reversed , opposite pertains to that which is diametrically opposed to a proposition , and reverse can mean each of those , antonymic , antonymous , converse , diametrical , opposing

noun

another adverse , antilogy , antipode , antipole , antithesis , antonym , contra , contradiction , contrary , contrast , converse , counterpart , foil , inverse , obverse , opposition , other extreme , other side , other side of coin , paradox , reverse , vice versanotes:contrary describes something that contradicts a proposition , converse is used when the elements of a proposition are reversed , opposite pertains to that which is diametrically opposed to a proposition , and reverse can mean each of those , antipodes , counter , across , adverse , antagonistic , antipodal , antipodean , antithetical , contradictory , counterpoint , diametrical , different , face to face , facing , polar