3. Those which are anomalous, provincial, or, for some other reason, not desirable to be used, and are
so indicated; as, unpure for impure, unsatisfaction for dissatisfaction, unexpressible for inexpressible,
and the like.
II. Un- is prefixed to nouns to express the absence of, or the contrary of, that which the noun signifies; as,
unbelief, unfaith, unhealth, unrest, untruth, and the like.
Compounds of this last class are given in full in their proper order in the Vocabulary.