alienated alone aloof apart baseless companionless detached empty friendless groundless homeless idle ill-founded inconclusive indecisive insular isolated kithless lone lonely lonesome not following not proved removed rootless separate separated single-handed solitary solo unabetted unaccompanied unaided unascertained unassisted unattended unattested unauthenticated unbased uncertified unconfirmed uncorroborated undemonstrated undetermined unescorted unestablished unfixed unfounded ungrounded unproved unproven unseconded unsettled unshown unsubstantiated unsupportable unsupported by evidence unsustainable unsustained untenable untested untried unvalidated unverified unwarranted vain withdrawn without basis without foundation without grounds