I. ˈhəmˌdrəm adjective
Etymology: irregular reduplication of hum (I)
: having a routine or commonplace character : lacking interest, excitement, or sparkle : monotonous , workaday , prosaic
makes rather humdrum use of a good idea — Eric Keown
the more humdrum aspects of military life, like drill, neatness, and organization — Blair Clark
the humdrum problem of making ends meet — American Guide Series: Massachusetts
II. noun
: the quality or state of being humdrum
the ordinary, average day, with its good human humdrum — C.E.Montague
give him that very experience of the humdrum of clerical life — Compton Mackenzie