As adjectives the difference between diligent and untiring
is that diligent is performing with intense concentration, focus, responsible regard while untiring is not able to be tired; inexhaustible.
diligent
English
Adjective
(
en adjective)
Performing with intense concentration, focus, responsible regard.
Synonyms
* See also
Related terms
* diligence
External links
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untiring
English
Adjective
(-)
Not able to be tired; inexhaustible.
Unfailing; resolute.