conscientious Play adjectiveWishing to do one's work or duty well and thoroughly. SYNONYMS accurateassiduousattentivecarefulclosecorrectdedicateddiligenthard-workingindustriouslaboriousmeticulousminutepainstakingparticularperseveringpunctiliousreligiousrigoroussearchingsedulousstrictstudiousthoroughultra-carefulunflagging