Motherless \Moth"er*less\, a. [AS. m[=o]dorle['a]s.] Destitute of a mother; having lost a mother; as, motherless children. [1913 Webster]
28 Moby Thesaurus words for "motherless": abandoned, aidless, bereaved, bereft, defenseless, deprived, deserted, desolate, fatherless, forlorn, forsaken, friendless, godforsaken, guideless, helpless, homeless, kithless, leaderless, orphan, orphaned, outcast, parentless, pregnable, unfriended, unprotected, untenable, vulnerable, widowed