List of friendless synonyms and friendless related words.
abandoned, aidless, alienated, alone, aloof, apart, companionless, defenseless, deserted, desolate, detached, fatherless, forlorn, forsaken, godforsaken, guideless, helpless, homeless, insular, isolated, kithless, leaderless, lone, lonely, lonesome, motherless, outcast, pregnable, removed, rootless, separate, separated, single-handed, solitary, solo, unabetted, unaccompanied, unaided, unassisted, unattended, unescorted, unfriended, unprotected, unseconded, unsupported, untenable, vulnerable, withdrawn