adj. 25B6; adjective DILIGENT, careful, meticulous, thorough, assiduous, attentive, industrious, conscientious, ultra-careful, punctilious, scrupulous, painstaking, minute, rigorous, particular.
SEDULOUS
Meaning of SEDULOUS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012