冗 - superfluous, uselessness

joke; jest; funny story

supernumerary; superfluous staff; excess personnel

redundancy; superfluity

superabundance

chatter; useless words

tedious; verbose; wordy; lengthy; longwinded; prolix

redundancy

unnecessary expense

redundancy

unnecessary work; unnecessary expense

being somewhat (half) joking; half seriously; half in jest; in a jocular vein

half joking; being (only) half serious; (in a) jocular vein