EXAMPLES FROM THE WEB FOR ANNIHILATORY
The outraged and annihilatory Mrs. De Peyster gazed at Matilda, utterer of practical common-places.
1520s, from an obsolete adjective meaning "reduced to nothing" (late 14c.), originally the past participle of a verb, anihil, from Old French annichiler (14c.), from Late Latin annihilare "to reduce to nothing," from Latin ad- "to" (see ad-) + nihil "nothing" (see nil). Related: Annihilated; annihilating.