What does "yucky" mean?

Of something highly offensive; causing aversion or disgust.

What is a synonym for "yucky"?

Common synonyms include: disgusting, awful, bad, barfy, beastly, brackish.

/ˈjʌkɪ/ adj, slang

adj, slang ·Moderate ·High school level

Adjective

1
Of something highly offensive; causing aversion or disgust. childish, colloquial, often
"The food that I ate today was very yucky."

Adjective

"Do you feel yucky every morning?"

From yuck + -y. Compare Old English ġyċċiġ (“putrid”).