Synonyms and Antonyms for grump

Synonyms:

• misanthrope
• misanthropist
• fire-eater
• crabby person
• unpleasant person
• crosspatch
• crank
• crab
• hothead
• grouch
• churl
• disagreeable person

Antonyms:

• stay in place
• unbend
• stable
• unfasten
• stop