An armchair is a comfortable, cushioned chair with a support on each side, where you can rest your arms while you sit. Some armchairs are big enough that you can curl up and read a book in them.
Armchairs are distinguished by their "arms," rests built to comfortably support your arms. Most armchairs are also upholstered and soft enough for you to sink into a bit when you sit down. The word is also used as an adjective to jokingly describe someone who isn't an expert in something but acts like one: "Those armchair athletes always seem to know what the players and coaches should have done."
Close your vocabulary gaps with personalized learning that focuses on teaching the words you need to know.