1. Adjectives of Three Terminations in the nominative singular, - one for each gender: as, ácer, ácris, ácre.
2. Adjectives of Two Terminations, - masculine and feminine the same: as, levis (M., F.), leve (N.).
3. Adjectives of One Termination, - the same for all three genders: as, atróx.
a. Adjectives of two and three terminations are true i-stems and hence retain in the ablative singular -í, in the neuter plural -ia, in the genitive plural -ium, and in the accusative plural regularly -ís (see §§ 73 and 74).[But the forms of some are doubtful.]