indefatigable

The definition of indefatigable is a person or something that has tireless persistence.

(adjective)

Someone who keeps trying and trying to learn a skill and who never gives up is an example of a person who would be described as indefatigable.

See indefatigable in Webster's New World College Dictionary

adjective

that cannot be tired out; not yielding to fatigue; untiring

Origin: MFr indéfatigable < L indefatigabilis < in-, not + defatigare, to tire out, weary: see de- & fatigue

Related Forms:

See indefatigable in American Heritage Dictionary 4

adjective

Incapable or seemingly incapable of being fatigued; tireless. See Synonyms at tireless.

Origin:

Origin: Obsolete French indéfatigable

Origin: , from Latin indēfatīgābilis

Origin: : in-, not; see in-¹

Origin: + dēfatīgāre, to tire out (dē-, intensive pref.; see de- + fatīgāre, to weary)

Related Forms:

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