adj. 25B6; adjective DILIGENT, careful, meticulous, thorough, sedulous, attentive, conscientious, punctilious, painstaking, rigorous, particular; persevering.
ASSIDUOUS
Meaning of ASSIDUOUS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012