adjective
dank
DANK/dæŋk/
Unpleasantly damp, cold, and musty.
The dank basement smells musty even with the windows open.

Etymology
The earlier verb dank meant “to moisten,” especially of mist and dew; the adjective describes saturation with cold moisture. Its origin is uncertain, perhaps Scandinavian or German.
In context
Nothing grew in the dank air but crawling things which were horrible to the eye. There were great rank growths of toadstools
More examples
- A dank smell rises from the old cellar.
- The tunnel grows danker as we walk farther inside.
- A dehumidifier helps make the room less dank.
Forms
dank · danker · dankest
dankness noun — The state of being damp, cold, and musty.