From Longman Dictionary of Contemporary Englishlanguorlan‧guor /ˈlæŋɡə $ -ər/ noun [uncountable] literary 1 a pleasant feeling of laziness Lying there beside her, he was filled with an agreeable languor.2 NICEwhen the air is heavy and there is no wind the languor of a hot afternoon —languorous adjective —languorously adverbOrigin languor (1200-1300) Old French Latin, from languere; → LANGUISH