greasy

adjective

ˈgrē-sē  -zē 

greasier; greasiest

1

a

: smeared or soiled with grease

greasy clothes

b

: oily in appearance, texture, or manner

… his greasy smile …

—Jack London

c

: slippery

2

: containing an unusual amount of grease

greasy food

greasily

ˈgrē-sə-lē 

-zə-

adverb

greasiness

ˈgrē-sē-nəs 

-zē-

noun

Synonyms of greasy

• slicked
• slippery
• slick
• greased

Examples of greasy in a Sentence

My doctor told me to avoid greasy food.

that wet tarmac road is greasy enough to send the car into a skid

Recent Examples on the Web

For particularly greasy or oily sections, add a teaspoon or two of liquid dish soap to cut through it. — Bestreviews, Mercury News, 14 Aug. 2026

That means my greasy microfiber cloths do get washed with my cotton drying towels, along with oven mitts, linen napkins, and the seat pads for my counter stools (my kids somehow manage to trash them every week). — Emily Farris, Bon Appetit Magazine, 11 Aug. 2026

In response, Diez brought up Schaeffler’s plant in South Carolina, where Digit is working right now, loading greasy machine parts into an industrial washer. — John Koetsier, Forbes.com, 10 Aug. 2026

Double-Bag Leak-Prone Items Pour non-greasy liquids down the drain or into a jar to dispose of them. — Karen Brewer Grossman, Southern Living, 10 Aug. 2026

Word History

First Known Use

circa 1518, in the meaning defined at sense 1a

Phrases Containing greasy

• greasy spoon

Rhymes for greasy

• creasy
• fleecy

Kids Definition

greasy

adjective

ˈgrē-sē  -zē 

greasier; greasiest

1

: smeared with grease

2

: containing grease

greasy food

3

: resembling grease or oil : smooth, slippery

greasily

-sə-lē 

-zə-

adverb

greasiness

-sē-nəs 

-zē-

noun