a. poet. Obs. rare. [f. YIELD v. + -LESS.] Unyielding; not surrendering.

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1651.  Davenant, Gondibert, III. II. civ. A Fort so yeildless, that it fears to treat.

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1703.  Rowe, Ulysses, III. i. Undaunted, yieldless, firm.

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