Synonyms and related words :
abandoned, arbitrary, arrogant, autonomous, deserted, discretional, discretionary, disregarded, elective, free, free will, gratuitous, half-done, ignored, impregnable, impudent, independent, indomitable, inexpugnable, invulnerable, laid aside, left undone, missed, neglected, nonmandatory, offered, omitted, optional, overbearing, overlooked, passed by, passed over, passed up, pigeonholed, presumptuous, proffered, put aside, self-acting, self-active, self-determined, self-determining, shunted, sidelined, sidetracked, slighted, spontaneous, stalwart, stout, strong, sturdy, tenacious, tough, unacceptable, unagreeable, unasked-for, unassailable, unattended to, unbeatable, unbesought, unbidden, uncalled-for, uncared-for, unchaperoned, uncoerced, uncompelled, unconquerable, unconsidered, undefeatable, undesirable, undesired, undone, unforced, uninfluenced, uninvited, unpressured, unprompted, unregarded, unrequested, unrequired, unsolicited, unsought, untended, unwanted, unwatched, unwelcome, unwished, voluntary, volunteer, wanton, willful