definition of
humdrum

[1] #1 humdrum n. [monotony, sameness] the quality of wearisome constancy, routine, and lack of variety; "he had never grown accustomed to the monotony of his work"; "he was sick of the humdrum of his fellow prisoners"; "he hated the sameness of the food the college served". wn

[2] #2 humdrum s. [commonplace, prosaic, unglamorous, unglamourous] not challenging; dull and lacking excitement; "an unglamorous job greasing engines". wn

[3] #3 humdrum s. [monotonous] tediously repetitious or lacking in variety; "a humdrum existence; all work and no play"; "nothing is so monotonous as the sea". wn