11 letters · 11 points in Scrabble
noun someone who believes that the value of a thing depends on its utility
adjective having a useful function
adjective having utility often to the exclusion of values
originFrom utility + -arian. Coined by English philosopher Jeremy Bentham as early as 1781, and popularized by his student John Stuart Mill, who mistakenly attributed the term to John Galt.
Etymology from Wiktionary, CC BY-SA 3.0