Singular
NOMINATIVE
feinistreach (MASC.)
fheinistreach (FEM.)
GENITIVE
fheinistrigh (MASC.)
feinistrí (FEM.)
Plural
NOMINATIVE
feinistreacha
fheinistreacha (SLENDER CONSONANTS)
GENITIVE
feinistreacha (STRONG PLURALS)
feinistreach (WEAK PLURALS)
Other forms
COMPARATIVE
níos feinistrí
▪ní b'fheinistrí
SUPERLATIVE
is feinistrí
▪ab fheinistrí