a. [f. FAINT sb. + -LESS.] Exempt from fainting; unflagging.

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1593–4.  Sylvester, Profit of Imprisonment, 323.

          But many, which as yet the adverse part approve,
Conceive (if not confesse) that it doth more behoove
By faintless exercise faire Vertue to maintaine.

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1664.  Pepys, Diary (1879), III. 96. Cramp be thou faintless.

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