What are the best answers for “characterized by extreme care and great effort”?

conscientious, painstaking, scrupulous.

How many letters does the top answer for “characterized by extreme care and great effort” have?

The most common answer is conscientious (13 letters).

3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

conscientious 13 letters wn-def

characterized by extreme care and great effort

painstaking 11 letters wn-def

characterized by extreme care and great effort

scrupulous 10 letters wn-def

characterized by extreme care and great effort