Synonyms of conscientious in English:

conscientious


See US English definition of conscientious

See UK English definition of conscientious

See Spanish definition of concienzudo

adjective

1‘a conscientious man, he took his duties very seriously’

SYNONYMS
diligent, industrious, punctilious, painstaking, sedulous, assiduous, dedicated, careful, meticulous, thorough, attentive, laborious, hard-working, ultra-careful, persevering, unflagging, searching, close, minute, accurate, correct, studious, rigorous, particular
religious, strict
ANTONYMS

casual