Latin Adjectives: Irregular Adjectives: alius, alter, ullus, nullus, neuter, solus, totus

Overview

Nine adjectives exist that do not quite follow the same inflection patterns as first and second declension adjectives. These are: alius, alter, ullus, nullus, uter, neuter, solus, and totus. These adjectives follow two different type of inflection patterns in their singular forms. The plural forms of these adjectives, however, follow normal first and second declension patterns.

In addition, these nine irregular adjectives do not have vocative forms. Hopefully, the reason for this will be apparent as you see each word’s meaning.

Pattern #1 (-us, -a, -ud)

Case Masculine Feminine Neuter
Nominative -us -a -um
Genitive -ĭus -ĭus -ĭus
Dative
Accusative -um -am -ud
Ablative

Pattern #2 (-er, -a, -um)

Case Masculine Feminine Neuter
Nominative -er -a -um
Genitive -ĭus -ĭus -ĭus
Dative
Accusative -um -am -um
Ablative

alius, -a, -ud (another)

Case Masculine Feminine Neuter
Nominative alius alia alium
Genitive aliĭus aliĭus aliĭus
Dative aliī aliī aliī
Accusative alium aliam aliud
Ablative aliō aliā aliō

alter, -a, -um (the other)

Case Masculine Feminine Neuter
Nominative alter altera alterum
Genitive alterĭus alterĭus alterĭus
Dative alterī alterī alterī
Accusative alterum alteram alterum
Ablative alterō alterā alterō

ūllus, -a, -ud (any)

Case Masculine Feminine Neuter
Nominative ūllus ūlla ūllum
Genitive ūllĭus ūllĭus ūllĭus
Dative ūllī ūllī ūllī
Accusative ūllum ūllam ūllud
Ablative ūllō ūllā ūllō

nūllus, -a, -ud (none)

Case Masculine Feminine Neuter
Nominative nūllus nūlla nūllum
Genitive nūllĭus nūllĭus nūllĭus
Dative nūllī nūllī nūllī
Accusative nūllum nūllam nūllud
Ablative nūllō nūllā nūllō

uter, -a, -um (which)

Case Masculine Feminine Neuter
Nominative uter utera uterum
Genitive uterĭus uterĭus uterĭus
Dative uterī uterī uterī
Accusative uterum uteram uterum
Ablative uterō uterā uterō

neuter, -a, -um (neither)

Case Masculine Feminine Neuter
Nominative neuter neutera neuterum
Genitive neuterĭus neuterĭus neuterĭus
Dative neuterī neuterī neuterī
Accusative neuterum neuteram neuterum
Ablative neuterō neuterā neuterō

sōlus, -a, -ud (alone)

Case Masculine Feminine Neuter
Nominative sōlus sōla sōlum
Genitive sōlĭus sōlĭus sōlĭus
Dative sōlī sōlī sōlī
Accusative sōlum sōlam sōlud
Ablative sōlō sōlā sōlō

tōtus, -a, -ud (all)

Case Masculine Feminine Neuter
Nominative tōtus tōta tōtum
Genitive tōtĭus tōtĭus tōtĭus
Dative tōtī tōtī tōtī
Accusative tōtum tōtam tōtud
Ablative tōtō tōtā tōtō

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