| adjective | serving no useful purpose; having no excuse for being “otiose lines in a play” |
| adjective | more than is needed, desired, or required “trying to lose excess weight” |
| pointlessness | noun | total lack of meaning or ideas |
| purposelessness | noun | the quality of lacking any definite purpose |
| senselessness | noun | total lack of meaning or ideas |
| redundance | noun | the attribute of being superfluous and unneeded |
| redundancy | noun | repetition of messages to reduce the probability of errors in transmission |
| superfluity | noun | extreme excess |
| supernumerary | noun | a person serving no apparent function |