Singular
NOMINATIVE
riachtanach (MASC.)
riachtanach (FEM.)
GENITIVE
riachtanaigh (MASC.)
riachtanaí (FEM.)
Plural
NOMINATIVE
riachtanacha
GENITIVE
riachtanacha (STRONG PLURALS)
riachtanach (WEAK PLURALS)
Other forms
COMPARATIVE
níos riachtanaí
▪ní ba riachtanaí
SUPERLATIVE
is riachtanaí
▪ba riachtanaí
