indefatigable

Source: Certain glories of nature, for example, have been all but abandoned to the indefatigable attentions of amateur camera buffs.

in⋅de⋅fat⋅i⋅ga⋅ble
Pronunciation: \ˌin-di-ˈfa-ti-gə-bəl\

–adjective
incapable of being tired out; not yielding to fatigue; untiring.

Origin: 1580–90; L indēfatīgābilis untiring, equiv. to in- in- 3 + dēfatīgā(re) to tire out (see de-, fatigue ) + -bilis -ble




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