commonplace vs unglamorous

commonplace is a noun but unglamorous is not a noun.

Word	Noun	Adjective	Verb	Adverb
commonplace	Yes	Yes	No	No
unglamorous	No	Yes	No	No

As adjectives, commonplace and unglamorous are synonyms defined as:

commonplace and unglamorous: not challenging; dull and lacking excitement

Other synonyms of commonplace include humdrum, prosaic, unglamourous.

commonplace (noun)	unglamorous (noun)
a trite or obvious remark

commonplace (adjective)	unglamorous (adjective)
not challenging; dull and lacking excitement	not challenging; dull and lacking excitement
repeated too often; overfamiliar through overuse
completely ordinary and unremarkable