1. marked by precise accordance with details - meticulous research - punctilious in his attention to rules of etiquette • Syn: punctilious • Similar to: precise • Derivationally related forms: punctiliousness (for: punctilious), meticulosity, meticulousness 2. marked by extreme care in treatment of details - a meticulous craftsman - almost worryingly meticulous in his business formalities • Similar to: fastidious • Derivationally related forms: meticulosity, meticulousness