Noun

• S: (n) ex-husband, ex (a man who was formerly a certain woman's husband)
• S: (n) ex-wife, ex (a woman who was formerly a particular man's wife) "all his exes live in Texas"
• S: (n) X, x, ex (the 24th letter of the Roman alphabet)

Adjective

• S: (adj) antique, demode, ex, old-fashioned, old-hat, outmoded, passe, passee (out of fashion) "a suit of rather antique appearance"; "demode (or outmoded) attire"; "outmoded ideas"