Singular
NOMINATIVE
sainfheidhmeach (MASC.)
shainfheidhmeach (FEM.)
GENITIVE
shainfheidhmigh (MASC.)
sainfheidhmí (FEM.)
Plural
NOMINATIVE
sainfheidhmeacha
shainfheidhmeacha (SLENDER CONSONANTS)
GENITIVE
sainfheidhmeacha (STRONG PLURALS)
sainfheidhmeach (WEAK PLURALS)
Other forms
COMPARATIVE
níos sainfheidhmí
▪ní ba shainfheidhmí
SUPERLATIVE
is sainfheidhmí
▪ba shainfheidhmí