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Sly vs Indefatigable - What's the difference?

sly | indefatigable |

As adjectives the difference between sly and indefatigable

is that sly is artfully cunning; secretly mischievous; wily while indefatigable is extremely persistent and untiring.

As an adverb sly

is slyly.

sly

English

(Webster 1913)

Alternative forms

* (l) (obsolete)

Adjective

  • Artfully cunning; secretly mischievous; wily.
  • Dexterous in performing an action, so as to escape notice; nimble; skillful; cautious; shrewd; knowing; — in a good sense.
  • Done with, and marked by, artful and dexterous secrecy; subtle; as, a sly trick.
  • Light or delicate; slight; thin.
  • Synonyms

    * artful * cunning * knowing * sharp * crafty * shrewd * shifty * sly as a fox * slim * wily * See also

    Derived terms

    * sly as a fox * slyboots * slyness

    Adverb

  • Slyly.
  • Anagrams

    * ----

    indefatigable

    English

    Adjective

    (en adjective)
  • Extremely persistent and untiring.
  • *
  • but he was at the same time an excellent scholar, and most indefatigable in teaching the two lads.
  • * 1898 , :
  • All night long the Martians were hammering and stirring, sleepless, indefatigable , at work upon the machines they were making ready, and ever and again a puff of greenish-white smoke whirled up to the starlit sky.

    Synonyms

    * inexhaustible, tireless, unflagging, unsinkable, untiring, unwearying,

    Antonyms

    * defatigable (much less common)

    Derived terms

    * indefatigably * indefatigability * indefatigableness