not useful or effective in any way [≠ useful]:
The doctor concluded that further treatment would be useless.
a website full of useless information
virtually/completely/totally etc useless
Water had got into the radio, and now it was completely useless.
The land is useless for growing crops.
it is useless to do something
It was useless to complain.
unable or unwilling to do anything properly:
Don't ask Tim to fix it. He's completely useless.
—uselessness noun [uncountable]WORD FOCUS: bad
very bad: awful, terrible, horrible, lousy informal, appalling, ghastly, atrocious, horrendous
bad, but not very bad: not very good, mediocre, second-rate, so-so, lacklustre
of bad quality: shoddy, inferior, poor quality, cheap, crummy informal
bad at doing something: be no good at something
very bad at doing something: hopeless, terrible, useless, lousy informal, incompetent
morally bad: evil, wicked, immoral, corrupt, sick, perverted, degenerate
➔ See also bad