老大难 lǎodànán long-standing and difficult Origin Definitions Defs Strokes Stroke Words Sentences Sents 老 lǎo adjective long-standing of long standing; existing for a long time; original; former大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult难 難 nán adjective difficult difficult; hard to do; troublesome; not easy; problematic; the opposite of 容易 róngyì