faintlessadj.
Exempt from fainting; unflagging.
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the mind > will > decision > perseverance or persistence > [adjective]
unwearyc893
unwearieda1240
perseverant1340
continuing1393
persevering?a1425
importunate1477
infatigable?1510
unfatigablec1550
persisting1552
unweariable1561
holdfast1567
indefatigable1586
patient1590
faintless1593
untired1597
untired1600
assidual1605
unrelenting1606
persistive1609
unwearyinga1614
hard1615
indefesse1621
constant1639
assiduous1660
dogged1700
unremitting1730
inexhaustible1762
unremitted1774
untiring1823
persistent1830
sleuth1864
tug-like1890
1593–4 J. Sylvester tr. O. de la Nove Profit Imprisonm. 323 By faintless exercise faire Vertue to maintaine.
1664 S. Pepys Diary 31 Dec. (1971) V. 362 Cramp be thou faintless.
This entry has not yet been fully updated (first published 1894; most recently modified version published online June 2019).
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adj.1593