Sell also: entirely, exclusively, lone, lonely, solely, solitary, solo, unaccompanied, unequaled, unique, unparalleled
• Adj: isolated from others; examples: "could be alone in a crowded room", "was alone with her thoughts", "I want to be alone"
• Adj: lacking companions or companionship; examples: "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"
• Adj: exclusive of anyone or anything else; examples: "she alone believed him", "cannot live by bread alone", "I'll have this car and this car only"
• Adj: radically distinctive and without equal; examples: "he is alone in the field of microbiology", "this theory is altogether alone in its penetration of the problem", "Bach was unique in his handling of counterpoint", "craftsmen whose skill is unequaled", "unparalleled athletic ability", "a breakdown of law unparalleled in our history"
• Adv: without any others being included or involved; examples: "was entirely to blame", "a school devoted entirely to the needs of problem children", "he works for Mr. Smith exclusively", "did it solely for money", "the burden of proof rests on the prosecution alone", "a privilege granted only to him"
• Adv: without anybody else; examples: "the child stayed home alone", "he flew solo"
Loneliness expresses the pain of being alone and solitude expresses the glory of being alone.
I'm the most gregarious of men and love good company, but never less alone when alone.
Alone! Alone! No beacon, far or near! No chart, no compass, and no anchor stay!