v. Simple past tense and past participle of outmode.
the GNU version of the Collaborative International Dictionary of English
adj. same as old-fashioned, a., 3.
adj. Unacceptable because it is inferior to current standards, procedures, or technology.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. out of fashion
Word Usage
"Insisting that people should say data are, in spite of the fact that an American English speaker can’t use data are without sounding pretentious or outmoded, is stupid."