D defs.my
Entry 1 sense Webster, 1913

Punctilious

/(-yŭs)/ · Punc·til·ious · IPA /pʌŋkˈtɪli.əs/
01 a. Attentive to punctilio; very nice or exact in the forms of behavior, etiquette, or mutual intercourse; precise; exact in the smallest parti…
  1. 1.
    Attentive to punctilio; very nice or exact in the forms of behavior, etiquette, or mutual intercourse; precise; exact in the smallest particulars.
    Punctilious in the simple and intelligible instances of common life.” I. Taylor.