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indefatigable

see definition of indefatigable
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Synonyms for indefatigable

adj untiring

Antonyms for indefatigable

  • changing
  • idle
  • inactive
  • indifferent
  • lazy
  • lethargic
  • negligent
  • tired
  • wavering
  • fatigued
  • weary
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

dogged

adjective. determined, persistent
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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