- loneliness, solitariness - the state of being alone in solitary isolation
--1 is a kind of isolation
- forlornness, loneliness, desolation - sadness resulting from being forsaken or abandoned
--2 is a kind of sadness, unhappiness
- aloneness, loneliness, lonesomeness, solitude - a disposition toward being alone
--3 is a kind of disposition, temperament