From Longman Dictionary of Contemporary Englishuselessuse‧less /ˈjuːsləs/ ●●○ adjective 🔊 🔊 1USELESSnot useful or effective in any way opp useful 🔊 The doctor concluded that further treatment would be useless. 🔊 a website full of useless informationvirtually/completely/totally etc useless 🔊 Water had got into the radio, and now it was completely useless.useless for 🔊 The land is useless for growing crops.it is useless to do something 🔊 It was useless to complain.worse than useless (=not useful and in fact causing harm or problems) 🔊 The map was so out-of-date it was worse than useless.2informalUSELESSunable or unwilling to do anything properly 🔊 Don’t ask Tim to fix it. He’s completely useless. —uselessly adverb —uselessness noun [uncountable]COLLOCATIONSadverbscompletely/totally/absolutely uselessThe treatment is completely useless.wholly/entirely uselessFrom his point of view qualifications are wholly useless.virtually/almost/practically uselessThese flaws could make the software virtually useless in a business environment.quite useless British English (=completely useless)The vehicle proved quite useless on rocky ground. pretty/fairly uselessThe book is pretty useless for today's students.verbsrender something uselessShe has a debilitating condition which renders her legs virtually useless.make something uselessSalt water flooded into the land making it useless for farming.prove uselessPolice checkpoints proved useless at stopping the suicide bombers.phrasesworse than useless (=not useful, and causing harm or problems)It would be worse than useless to try and complain about him.