Etymology

From , from .

Adjective

1. Relatively great in extent from one surface to the opposite in its smallest solid dimension.
2. Measuring a certain number of units in this dimension.

   I want some planks that are two inches thick.

3. Heavy in build; thickset.

   He had such a thick neck that he had to turn his body to look to the side.

4. Densely crowded or packed.

   We walked through thick undergrowth.

5. Having a viscous consistency.

   My mum’s gravy was thick but at least it moved about.

6. Abounding in number.

   The room was thick with reporters.

7. Impenetrable to sight.

   We drove through thick fog.

8. Difficult to understand, or poorly articulated.

   We had difficulty understanding him with his thick accent.

9. Stupid.

   He was as thick as two short planks.

10. Friendly or intimate.

    They were as thick as thieves.

11. Deep. intense, or profound.

    Thick darkness.

Synonyms

chunky, solid, stocky, thickset crowded, dense, packed glutinous, viscous overflowing, swarming, teeming dense, opaque, solid unclear dense, dumb (informal), stupid, thick as pigshit , thick as two short planks chummy , close, close-knit, friendly, pally , intimate, tight-knit great, extreme

• See also Wikisaurus:stupid

Antonyms

slim, thin slender, slight, slim, svelte, thin sparse free-flowing, runny thin, transparent clear, lucid brainy , intelligent, smart unacquainted

Adverb

1. In a thick manner.

   Snow lay thick on the ground.

2. Thickly.

   Bread should be sliced thick to make toast.

Noun

1. The thickest, or most active or intense part of something.

   It was mayhem in the thick of battle.