impediment
im.ped.i.ment \im-'ped-*-m*nt\ n 1a: OBSTRUCTION 1b: something that impedes; esp : an organic obstruction to speech 2: a bar or hindrance (as lack of sufficient age) to a lawful marriage
Webster's English Dictionaryim.ped.i.ment \im-'ped-*-m*nt\ n 1a: OBSTRUCTION 1b: something that impedes; esp : an organic obstruction to speech 2: a bar or hindrance (as lack of sufficient age) to a lawful marriage