Synonym: commonplace, monotonous, monotony, prosaic, sameness, unglamorous, unglamourous. Similar words: drum, drum up, conundrum, drug, drub, drunken, drugged, drudgery. Meaning: ['hʌmdrʌm] 
n. the quality of wearisome constancy, routine, and lack of variety. adj. 1. not challenging; dull and lacking excitement 2. tediously repetitious or lacking in variety.
n. the quality of wearisome constancy, routine, and lack of variety. adj. 1. not challenging; dull and lacking excitement 2. tediously repetitious or lacking in variety. 
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31. Today is a humdrum day. So common and nothing especial to be write.
32. She was tired of the humdrum life in the countryside and desired to go out.
33. They basically primp and pose through the same humdrum motions they did before.
34. They all appeared to be lost in the humdrum and routine of their work.
35. The mandate of heaven can be embodied in such humdrum entities as building codes.
36. After his years of adventure,(http://sentencedict.com/humdrum.html) he could not settle down to a humdrum life.
37. Last but not least, students'creativity tends to repressed due to the humdrum and dull homework.
38. She led a humdrum existence — all work and no play.
39. I envisioned it as a humdrum story of back-page caliber with a headline that read, "Drama Club Congratulated."
40. ENTP ( Extroverted intuiting with thinking ): These are lively people, not humdrum or orderly.