By oneself; alone; solitary
Without others of a similar kind; lone; solitary:
Having or causing a lonely feeling
Consisting of one part, aspect, or section:
Without others; single; only
Lacking the company of others
Find another word for companionless. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for companionless, like: alone, lone, lonely, lonesome, single, solitary, unaccompanied and include.