armchair

/ˈɑːrmtʃɛr/
noun
  1. A comfortable chair with side supports for the arms.
    • She curled up in the armchair with a good book and a cup of tea.
    • Grandpa fell asleep in his favorite armchair by the fireplace.
    • We bought a new leather armchair for the living room.
Synonyms
adjective
  1. Describing someone who gives opinions or advice about something without having direct experience or involvement, especially in politics or sports.
    • Too many armchair experts think they can solve the country's problems from their living rooms.
    • Armchair critics on social media often have never tried the job themselves.
    • He's an armchair quarterback who thinks he knows better than the coach.