Knockout antonyms | adjectives

Antonyms for Knockout as a Adjective

• grotesque
• hideous
• homely
• ill-favored
• plain
• 

  ugly
• unaesthetic
• unattractive
• unbeautiful
• uncomely
• uncute
• unhandsome
• unlovely
• unpleasing
• unpretty
• unsightly
• abhorrent
• abominable
• bad
• disagreeable
• disgusting
• dreadful
• foul
• frightful
• ghastly
• horrible
• loathsome
• nasty
• nauseating
• objectionable
• offensive
• repellent
• repugnant
• repulsive
• revolting
• shocking
• sickening
• terrible
• vile
• unappealing
• unappetizing
• unimposing
• unpleasant
• unprepossessing
• frumpish
• frumpy
• unbecoming
• unshapely
• gorgonian
• haggish