1.
A ~ sky or sea is dark grey and has no movement of clouds or waves. (LITERARY)
The weather was at its worst; bitterly cold, with ~ skies that gave minimum visibility.
ADJ
2.
A ~ conversation or piece of writing is not very interesting.
...a ~ English translation from the Latin.
= dull
ADJ
3.
If your movements are ~, you move slowly and heavily, usually because you are tired. (LITERARY)
He heard the father’s ~ footsteps move down the stairs.
= heavy
ADJ