7 letters · 10 points in Scrabble
noun an event that departs from expectations
noun (biology) a group of organisms within a species that differ in trivial ways from similar groups
noun a variable quantity that is random
originFrom Old French variant, from Latin variāns, the present active participle of variō (“to change”). First attested in c. 1380.
Etymology from Wiktionary, CC BY-SA 3.0