rummish /ˈɹʌm.ɪʃ/adjective 1verb 1forms 5 adjective1 •(old-fashioned) Somewhat rum or peculiar; oddish. verb1 •(no longer used) To roar; to bellow.Great Whales shall rummish, rout and rair, Whose Sound redound shall in the Air, All Fish and Monsters marvellous, Shall cry with Sounds odious. — 1720 formsrummished · rummishing · rummishes · more rummish · most rummish