(Judaism) an initiation ceremony marking the 13th birthday of a Jewish boy and signifying the beginning of religious responsibility; "a bar mitzvah is an important social event"
confirm in the bar mitzvah ceremony, of boys in the Jewish faith
an obvious change of public opinion or political sentiment that occurs without leadership or overt expression; "there was a ground swell of antiwar sentiment"
not tried or tested by experience; "unseasoned artillery volunteers"; "still untested in battle"; "an illustrator untried in mural painting"; "a young hand at plowing"