languid vs vital

languid

adj
  • 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. 

noun
  • Synonym of languet (“a flat plate in (or opposite and below the mouth of) the pipe of an organ”) 

vital

adj
  • Invigorating or life-giving. 

  • Very important. 

  • Containing life; living. 

  • Necessary to continued existence. 

  • Necessary to the continuation of life; being the seat of life; being that on which life depends. 

  • Capable of living; in a state to live; viable. 

  • Relating to the recording of life events. 

  • Relating to, or characteristic of life. 

How often have the words languid and vital occurred in a corpus of books? (source: Google Ngram Viewer )