\Punc*til"ious\ (-y[u^]s), a. [Cf. It. puntiglioso,
Sp. puntilloso.]
Attentive to punctilio; very nice or exact in the forms of
behavior, etiquette, or mutual intercourse; precise; exact in
the smallest particulars. ``A punctilious observance of
divine laws.'' --Rogers. ``Very punctilious copies of any
letters.'' --The Nation.

      Punctilious in the simple and intelligible instances of
      common life.                             --I. Taylor.
-- {Punc*til"ious*ly}, adv. -- {Punc*til"ious*ness}, n.