What is destitute of forge or efficacy; effecting no purpose; fruitless; ineffectual; as, vain toil; a vain attempt. Bring no more vain oblations. Isa. i called?

vain — Destitute of forge or efficacy; effecting no purpose; fruitless; ineffectual; as, vain toil; a vain attempt. Bring no more vain oblations. Isa. i. (Webster's 1913.)

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