conscientious vs painstaking

conscientious and painstaking both are adjectives.

Word	Noun	Adjective	Verb	Adverb
conscientious	No	Yes	No	No
painstaking	No	Yes	No	No

As adjectives, conscientious and painstaking are synonyms defined as:

conscientious and painstaking: characterized by extreme care and great effort

Other synonyms of conscientious include scrupulous.

conscientious (adjective)	painstaking (adjective)
guided by or in accordance with conscience or sense of right and wrong	characterized by extreme care and great effort
characterized by extreme care and great effort