未婚みこん Common Noun Noun English jmdict 1 nouns which may take the genitive case particle 'no'noun (common) (futsuumeishi) unmarried;not yet married See also: 非婚 (ひこん) Antonym: 既婚 (きこん) その実験は未婚の男性100人を対象に行われた。 The experiment was made on a hundred unmarried males.