yucky (adj.)

• awful
• bad
• beastly
• brackish
• cloying
• disgusting
• fetid
• foul
• fulsome
• high
• icky
• maggoty
• mawkish
• mucky
• nasty
• nauseating
• nauseous
• noisome
• noxious
• offensive
• overripe
• poisonous
• rancid
• rank
• rebarbative
• repellent
• repugnant
• revolting
• rotten
• sickening
• spoiled
• stinking
• unappetizing
• vile