Definition of lonely

• lacking companions or companionship; "he was alone when we met him"; "she is alone much of the time"; "the lone skier on the mountain"; "a lonely fisherman stood on a tuft of gravel"; "a lonely soul"; "a solitary traveler"
• marked by dejection from being alone; "felt sad and lonely"; "the loneliest night of the week"; "lonesome when her husband is away"; "spent a lonesome hour in the bar"
• remote or secluded; "a lonely crossroads"; "a solitary retreat"; "a trail leading to an unfrequented lake"