Very boring; devoid of interest.
Of an idea, writing, etc.: dull, uninteresting.
Of a period of time: characterized by lack of activity; pleasant and relaxed; unstressful.
Of a person or animal, or their body functions: flagging from weakness, or inactive or weak, especially due to illness or tiredness; faint, listless.
Of a colour: not bright; dull, muted.
Of a person or their actions, character, etc.: lacking drive, emotion, or enthusiasm; apathetic, listless, spiritless, unenthusiastic.
Of a person or their movement: showing a dislike for physical effort; leisurely, unhurried.
Of a thing: lacking energy, liveliness, or strength; inactive, slow-moving, weak.
Synonym of languet (“a flat plate in (or opposite and below the mouth of) the pipe of an organ”)