slippery

adjective

slip·​pery ˈsli-p(ə-)rē 

slipperier; slipperiest

1

a

: causing or tending to cause something to slide or fall

slippery roads

b

: tending to slip from the grasp

a slippery fish

2

a

: not firmly fixed : unstable

b

: not precise or fixed in meaning : ambiguous, elusive

3

: not to be trusted : tricky

slipperiness noun

Synonyms of slippery

• shady

Examples of slippery in a Sentence

The trails were muddy and slippery.

Fish are slippery to hold.

The sign cautions: “Slippery when wet.”

Recent Examples on the Web

Entrances, polished tile, food court flooring, and the areas near refrigerated cases get slippery quickly as wet shoes cross the thresholds. — Miami Herald, 14 Aug. 2026

Imagine the ripe smell of swamp-wet dogs, the acrid stench of overheated, enraged bear, the slippery warm blood of pack members already lost; the simply insufferable noise and confusion in that dank little hole. — Paul Schullery, Outdoor Life, 13 Aug. 2026

Yen's slippery slide In Asia, Japan's yen has been sliding closer to the critical 160 mark against the dollar, reversing the gains from intervention efforts when Tokyo and Washington coordinated to halt the currency's depreciation. — Lim Hui Jie, CNBC, 12 Aug. 2026

Snoozies Skinnies Travel Slippers Slippers or grip socks are another must-have item during my travels, particularly in rooms with cold or slippery floors. — Kristin Braswell, Travel + Leisure, 11 Aug. 2026

Word History

Etymology

slipper entry 1 + -y entry 1

Note: As the earliest occurrence of slippery appears to be in the Coverdale Bible (1535, Psalm 35:6), it has been suggested that the addition of the suffix -y to the adjective slipper copies German schlipfferig in Luther's translation of the same passage (1534, present-day German schlüpfrig). The German word is ultimately from the same Germanic base as slip entry 5 (see Oxford Dictionary of English Etymology).

First Known Use

circa 1500, in the meaning defined at sense 1a

Phrases Containing slippery

• slippery elm
• slippery slope

Kids Definition

slippery

adjective

slip·​pery ˈslip-(ə-)rē 

slipperier; slipperiest

1

: having a surface smooth enough to cause one to slide or lose one's hold

2

: not worthy of trust : tricky, crafty

slipperiness noun