Nouns

(n)platitude, cliche, banality, commonplace, bromidea trite or obvious remark

Adjectives

(s)commonplacecompletely ordinary and unremarkable“air travel has now become commonplace”, “commonplace everyday activities”
(s)commonplace, humdrum, prosaic, unglamorous, unglamourousnot challenging; dull and lacking excitement“an unglamorous job greasing engines”
(s)banal, commonplace, hackneyed, old-hat, shopworn, stock, threadbare, timeworn, tired, trite, well-wornrepeated too often; overfamiliar through overuse“his remarks were trite and commonplace”, “hackneyed phrases”, “a stock answer”, “repeating threadbare jokes”, “parroting some timeworn axiom”, “the trite metaphor ‘hard as nails’”