Word of the day, Vainglory Our word of the day from The Arbiter is Vainglory Meaning of Vainglory Excessive pride in oneself or one's achievements; boastful vanity. Synonyms of vainglory * Conceit * Arrogance * Self-importance * Hubris READ ALSO: Word of the day, Dovetail Pronunciation of Vainglory (VAYN-glor-ee) Example How can one engage in vanity and vainglory after experiencing the death of a loved one? Share with us a sentence with the word Vainglory. Let's see how well you understand it.