Synonym: fruitless, ineffectual, worthless. Antonym: useful. Similar words: senseless, careless, nonetheless, homeless, hopeless, tasteless, guileless, changeless. Meaning: ['juːslɪs] 
adj. having no beneficial use or incapable of functioning usefully.
adj. having no beneficial use or incapable of functioning usefully. 
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151. It is useless for me to point out that scientific curiosity by itself is as irresponsible as the curiosity of a child.
More similar words: senseless, careless, nonetheless, homeless, hopeless, tasteless, guileless, changeless, nevertheless, tactlessness, select, selected, selection, vessel, less, telescope, celestial, bless, unless, lesson, endless, witless, odorless, pitiless, much less, less than, flawless, tactless, harmless, reckless.