its positive: x
denotes everything but X; and 'not-wise' may be taken to include stones,
triangles and hippogriffs. And even in this sense, a negative term has
some positive meaning, though a very indefinite one, not a specific
positive force like 'unwise' or 'unhappy': it denotes any and everything
that has not the attributes connoted by the corresponding positive term.

Privative Terms connote the absence of a quality that normally belongs
to the kind of thing denoted, as 'blind' or 'deaf.' We may predicate
'blind' or 'deaf' of a man, dog or cow that happens not to be able to
see or hear, because the powers of seeing and hearing generally belong
to those species; but of a stone or idol these terms can only be used
figuratively. Indeed, since the contradictory of a privative carries
with it the privative limitation, a stone is strictly 'not-blind': that
is, it is 'not-something-that-normally-having-sight-wants-it.'

Contrary Terms are those that (within a certain genus or _suppositio_)
severally connote differential qualities that are, in fact, mutually
incompatible in the same relation to the same thing, and therefore
cannot be predicated of the same subject in the same relation; and, so
far, they resemble Contradictory Terms: but they differ from
contradictory terms in this, that the differential quality connoted by
each of them is definitely positive; no Contrary Term is infinite, but
is limited to part of the _suppositio_ excluded by the others; so that,
possibly, neither of two Contraries is truly predicable of a given
subject. Thus 'blue' and 'red' are Contraries, for they cannot both be
predicated of the same thing in the same relation; but are not
Contradictories, since, in a given case, neither may be predicable: if a
flower is blue in a certain part, it cannot in the same part be red; but
it may be neither blue nor red, but yellow; though it is certainly
either blue or not-blue. All co-ordinate terms are formal Contraries;
but if, in fact, a series of co-ordinates comprises only two (as
male-female), they are empirical Contradictories; since each includes
all that area of the _suppositio_ which the other excludes.

The extremes of a series of co-ordinate terms are Opposites; as, in a
list of colours, white and black, the most strongly contrasted, are said
to be opposites, or as among moods of feeling, rapture and misery are
opposites. But this distinction is of slight logical importance.
Imperfect Positive