Webster's 1828 Dictionary
UNASSISTED
a.Not assisted; not aided or helped; as unassisted reason.
New American Oxford Dictionary
unassisted
un as sist ed |ˌənəˈsistid ˌənəˈsɪstɪd | ▶adjective not helped by anyone or anything: medically unassisted births | I could never find the place unassisted. • (of a play in a team sport ) done by one player, without an assist from another player: he made two unassisted tackles.
Oxford Dictionary
unassisted
un |assist ¦ed |ʌnəˈsɪstɪd | ▶adjective not helped by anyone or anything: medically unassisted births | I could never find the place unassisted.
American Oxford Thesaurus
unassisted
unassisted adjective an unassisted effort: individual, unaided, unsupported, single-handed, lone, solo. ▶adverb she achieved it all unassisted: alone, individually, single-handedly, by oneself, on one's own, without help.
Sanseido Wisdom Dictionary
unassisted
ù n as s í st ed /-ɪd /形容詞 助けのない, 援助なしの .