punc·til·i·ous /pʌŋkˈtɪliəs/ adjectiveadj formal CAREFULvery careful to behave correctly and follow rules 〔行为〕拘谨的,一丝不苟的punctilious about Joe was always punctilious about repaying loans. 乔一向按时足额偿还贷款。
—punctiliously adverbadv
—punctiliousness noun [uncountableU]