discord

Noun

• strife resulting from a lack of agreement

• a harsh mixture of sounds

• disagreement among those expected to cooperate

• lack of agreement or harmony

Verb

• be different from one another

Related words

• Synonyms: 
  discordance , dissension , strife , disagree , disaccord
• Antonyms: 
  match , fit , correspond , check , jibe , gibe , tally , agree