Indefinite is sometimes used in logic to denote terms which
have no sign of logical quantity universal or particular attached to
Londoners, Frenchmen, and the like, as distinguished from such as have,
all Londoners, some Londoners, &c. Since Sir W. Hamilton's
writings, however, this use of the word is likely to die off. With far
more felicity he applies it to the particular term some, of which the
precise extent is not given, and substitutes for it in the other case
the title indesignate.