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adj.
(followed by `to' or `of') lacking conscious awareness of; "oblivious of the mounting pressures for political reform"; "oblivious to the risks she ran"; "not unmindful of the heavy responsibility"
adj.
not wise in the ways of the world; "either too unsophisticated or too honest to promise more than he could deliver"; "this helplessly unworldly woman"- Kate O'Brien
adj.
lacking in sophistication or worldliness; "a child's innocent stare"; "his ingenuous explanation that he would not have burned the church if he had not thought the bishop was in it"