* Some masculine nominative singulars of -īus adjectives end in -r (e.g., alter, altera, alterum). ** Some neuter nominative singulars of -īus adjectives end in -d (e.g., alius, alia, aliud).
Plural
Case
Masculine
Feminine
Neuter
Nominative
null-ī
null-ae
null-a
Genitive
null-ōrum
null-ārum
null-ōrum
Dative
null-īs
null-īs
null-īs
Accusative
null-ōs
null-ās
null-a
Ablative
null-īs
null-īs
null-īs
Three-Termination Adjectives
ācer, ācris, ācre - keen, sharp
Singular
Case
Masculine
Feminine
Neuter
Nominative
ācer
ācr-is
ācr-e
Genitive
ācr-is
ācr-is
ācr-is
Dative
ācr-ī
ācr-ī
ācr-ī
Accusative
ācr-em
ācr-em
ācr-e
Ablative
ācr-ī
ācr-ī
ācr-ī
Plural
Case
Masculine
Feminine
Neuter
Nominative
ācr-ēs
ācr-ēs
ācr-ia
Genitive
ācr-ium
ācr-ium
ācr-ium
Dative
ācr-ibus
ācr-ibus
ācr-ibus
Accusative
ācr-ēs
ācr-ēs
ācr-ia
Ablative
ācr-ibus
ācr-ibus
ācr-ibus
Two-Termination Adjectives
fortis, forte - strong, brave
Singular
Case
M./F.
Neuter
Nominative
fort-is
fort-e
Genitive
fort-is
fort-is
Dative
fort-ī
fort-ī
Accusative
fort-em
fort-e
Ablative
fort-ī
fort-ī
Plural
Case
M./F.
Neuter
Nominative
fort-ēs
fort-ia
Genitive
fort-ium
fort-ium
Dative
fort-ibus
fort-ibus
Accusative
fort-ēs
fort-ia
Ablative
fort-ibus
fort-ibus
One-Termination Adjectives
sapiēns, sapientis - wise
Singular
Case
M./F.
Neuter
Nominative
sapiēns
sapiēns
Genitive
sapient-is
sapient-is
Dative
sapient-ī
sapient-ī
Accusative
sapient-em
sapiēns*
Ablative
sapient-ī
sapient-ī
* The accusative forms of all neuter nouns, adjectives, and pronouns exactly match their nominative counterparts within the same number (e.g., neuter accusative singular = neuter nominative singular).