humdrum /ˈhʌmdɹʌm/noun 2adjective 1forms 3 noun2 •The quality of lacking variety or excitement.I think it helped distract us from the dry, humdrum, and heat of the here and now. — 2010 •(old-fashioned) A stupid fellow. adjective1 •Lacking variety or excitement; dull; boring. formshumdrums · more humdrum · most humdrum