thickest

/TH IH1 K IH0 S T/
adjective
  1. 1

    Relatively great in extent from one surface to the opposite in its smallest solid dimension.

    syn:broad
  2. 2

    Measuring a certain number of units in this dimension.

    โ€œI want some planks that are two inches thick.โ€

  3. 3

    Heavy in build; thickset.

    โ€œHe had such a thick neck that he had to turn his body to look to the side.โ€

  4. 4

    Densely crowded or packed.

    โ€œWe walked through thick undergrowth.โ€

    ant:sparse
  5. 5

    Having a viscous consistency.

    โ€œMy mumโ€™s gravy was thick but at least it moved about.โ€

  6. 6

    Abounding in number.

    โ€œThe room was thick with reporters.โ€

  7. 7

    Impenetrable to sight.

    โ€œWe drove through thick fog.โ€

  8. 8

    (Of an accent) Prominent, strong.

  9. 9

    Stupid.

    โ€œHe was as thick as two short planks.โ€

  10. 10

    Friendly or intimate.

    โ€œThey were as thick as thieves.โ€

  11. 11

    Deep, intense, or profound.

    โ€œThick darkness.โ€

  12. 12

    Troublesome; unreasonable

  13. 13

    (chiefly of women) Curvy and voluptuous, and especially having large hips.

adverb
  1. 1

    In a thick manner.

    โ€œSnow lay thick on the ground.โ€

  2. 2

    Frequently or numerously.

    โ€œThe arrows flew thick and fast around us.โ€

Source: https://en.wiktionary.org/wiki/thick, https://en.wiktionary.org/wiki/thickest