Singular
NOMINATIVE
ceathairchúinneach (MASC.)
cheathairchúinneach (FEM.)
GENITIVE
cheathairchúinnigh (MASC.)
ceathairchúinní (FEM.)
Plural
NOMINATIVE
ceathairchúinneacha
cheathairchúinneacha (SLENDER CONSONANTS)
GENITIVE
ceathairchúinneacha (STRONG PLURALS)
ceathairchúinneach (WEAK PLURALS)
Other forms
COMPARATIVE
níos ceathairchúinní
▪ní ba cheathairchúinní
SUPERLATIVE
is ceathairchúinní
▪ba cheathairchúinní