posterō diē, annō, etc. the following day, etc.,
posterī, descendants,
posterior, later, postrēmus, latest, last.
postumus, late-born, posthumous.
exteri, foreigners,
nātiōnēs exterae, foreign nations,
exterior, outer extrēmus, extimus, outermost.
inferī, gods of the lower world,
Mare Inferum, Mediterranean Sea,
īnferior, lower, īnfimus, īmus, lowest.
superī, gods above,
Mare Superum, Adriatic Sea,
superior, higher, suprēmus, last.
summus, highest.

3. Comparative lacking.

vetus, old, ——[[17]] veterrimus.
fīdus, faithful, —— fīdissimus.
novus, new, ——[[18]] novissimus,[[19]] last.
sacer, sacred, —— sacerrimus.
falsus, false, —— falsissimus.

Also in some other words less frequently used.

4. Superlative lacking.

alacer, lively, alacrior, ——
ingēns, great, ingentior, ——
salūtāris, wholesome, salūtārior, ——
juvenis, young, jūnior, ——[[20]]
senex, old, senior. ——[[21]]

a. The Superlative is lacking also in many adjectives in -ālis, -īlis, -ĭlis, -bilis, and in a few others.

Comparison by Magis and Maximē.

[74]. Many adjectives do not admit terminational comparison, but form the Comparative and Superlative degrees by prefixing magis (more) and maximē (most). Here belong—

1. Many adjectives ending in -ālis, -āris, -idus, -īlis, -icus, imus, īnus, -ōrus.