yawning

Adjective

• showing lack of attention or boredom
  • the yawning congregation
    

• with the mouth wide open indicating boredom or sleepiness
  • a yawning congregation
    

• gaping open as if threatening to engulf someone or something
  • the yawning mine shaft
    
  • a yawning abyss
    

Noun

• an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
  • he could not suppress a yawn
    
  • the yawning in the audience told him it was time to stop
    
  • he apologized for his oscitancy
    

Related words

• Synonyms: 
  drowsy , oscitant , yawning(a) , yawn , oscitance , oscitancy