sickening (adj.)

• abhorrent
• abominable
• bad
• base
• beastly
• brackish
• cloying
• contemptible
• crude
• despicable
• detestable
• disgusting
• execrable
• fetid
• forbidding
• foul
• fulsome
• gross
• hateful
• heinous
• high
• icky
• ignoble
• loathsome
• maggoty
• malodorous
• mawkish
• mephitic
• miasmal
• miasmic
• nasty
• nauseating
• nauseous
• noisome
• noxious
• objectionable
• obnoxious
• obscene
• odious
• offensive
• overripe
• poisonous
• rancid
• rank
• rebarbative
• repellent
• repugnant
• repulsive
• revolting
• rotten
• spoiled
• stinking
• vile
• yucky