All the adjectives are traditionally divided into two large subclasses:
qualitative and relative. Relative adjectives express such properties of a substance
as are determined by the direct relation of the substance to some other substance.
E.g. mathematics — mathematical precision; history — a historical event.
Qualitative adjectives, as different from relative ones, denote various qualities of
substances which admit of a quantitative estimation, i.e. of establishing their
correlative quantitative measure. The measure of a quality can be estimated as high
or low, adequate or inadequate, sufficient or insufficient, optimal or excessive. The
ability of an adjective to form degrees of comparison is usually taken as a formal
sign of its qualitative character, in opposition to a relative adjective which is
understood as incapable of forming degrees of comparison by definition.
However, in actual speech the described principle of distinction is not
strictly observed. Substances can possess qualities that are incompatible with the
idea of degrees of comparison. So adjectives denoting these qualities and incapable
of forming degrees of comparison still belong to the qualitative subclass (extinct,immobile, deaf, final, fixed, etc.) On the other hand, some relative adjectives can form degrees of comparison. Cf.: a grammatical topic — a purely grammatical topic — the most grammatical of the suggested topics.
Prof. Blokh suggests that distinction be based on the evaluative function of
adjectives. According as they actually give some qualitative evaluation to the
substance referent or only point out its corresponding native property, all the
adjective functions may be grammatically divided into "evaluative" and
"specificative". One and the same adjective, irrespective of its being "relative" or
"qualitative", can be used either in the evaluative function or in the specificative
function. For instance, the adjective good is basically qualitative. On the other
hand, when employed as a grading term in teaching, i.e. a term forming part of the
marking scale together with the grading terms bad, satisfactory, excellent, it acquires the said specificative value; in other words, it becomes a specificative, not an evaluative unit in the grammatical sense. Conversely, the adjective wooden is basically relative, but when used in the broader meaning "expressionless" or
"awkward" it acquires an evaluative force and, consequently, can presuppose a
greater or lesser degree ("amount") of the denoted properly in the corresponding
referent.
Thus, the introduced distinction between the evaluative and specificative
uses of adjectives, in the long run, emphasizes the fact that the morphological
category of comparison (comparison degrees) is potentially represented in the
whole class of adjectives and is constitutive for it.
Adjectives that characterize the referent of the noun directly are termed
inherent, those that do not are termed non-inherent.
eg. an old member of the club – the member of the club is old
Most adjectives are inherent, and it is especially uncommon for dynamic