1(ineffective)[+object]que no sirve para nada;[+person]inútil
this can opener's uselesseste abrelatas no sirve para nada;compasses are useless in the junglelas brújulas no sirven para or de nada en la selva;she's uselesses una inútil;he's useless as a forwardno vale para delantero;no sirve como delantero;I was always useless at mathssiempre fui (un) negado or un inútil para las matemáticas
she hoards all these useless objectsin the retreat to Benghazi, scores of useless vehicles were abandoned as they broke downhis arm was useless after the accident
he's a mine of useless information!se sabe todo tipo de datos y chorraditas que no sirven de nada (informal);to render or make sth uselessinutilizar algo
rheumatism had rendered his left arm uselessthey had been promised software and support that never materialized,rendering their computers uselessyou can outperform your enemies to such a degree that their weapons are rendered uselessThe sole usually comes loose at the heel and starts flopping around after a few months' wear,rendering them pretty useless in the rainthe storm made their instruments useless
3(pointless)inútil
she spends her time engaged in endless and useless arguments with himthe war was lost and further resistance was useless
it's useless to shoutde nada sirve gritar;es inútil gritar