fau·teuil (fō′tĭl, fō-tœ′yə) n. An upholstered armchair usually having sides that are open. [French, from Old French faldestoel, of Germanic origin; see pel- in Indo-European roots.] fauteuil (ˈfəʊtɜːɪ; French fotœj) n (Furniture) an armchair, the sides of which are not upholstered [C18: from French, from Old French faudestuel, folding …