Synonyms for opposite

adverb

• directly facing each other

adjective

• characterized by opposite extremes; completely opposed
• of leaves etc; growing in pairs on either side of a stem
• altogether different in nature or quality or significance
• being directly across from each other; facing
• moving or facing away from each other
• the other one of a complementary pair

noun

• a contestant that you are matched against
• a relation of direct opposition
• something inverted in sequence or character or effect
• a word that expresses a meaning opposed to the meaning of another word, in which case the two words are antonyms of each other