Adlai \a-dlai, ad-lai\ as a boy's name (also used as girl's name Adlai), is pronounced AD-lay. It is of Hebrew origin, and the meaning of Adlai is "God is just". Aramaic contracted form of the Hebrew name Adaliah. Also possibly means "ornament" in Hebrew. Biblical name borne by a very minor character, the father of one of King David's herdsmen. Made famous in the 20th century by the presidential candidate Adlai Stevenson.