- This new computer system is completely unnecessary and a misuse of taxpayers' money.
- She made one or two nasty remarks about their house which I thought was a bit unnecessary.
- There is still some hope that the economic blockade will work and make military intervention unnecessary.
- She brought round a bunch of flowers to thank me, but it was totally unnecessary.
- We need to save money and cut out all unnecessary expenses.
Thesaurus: synonyms and related words