Singular
NOMINATIVE
iosmairteach (MASC.)
iosmairteach (FEM.)
GENITIVE
iosmairtigh (MASC.)
iosmairtí (FEM.)
Plural
NOMINATIVE
iosmairteacha
GENITIVE
iosmairteacha (STRONG PLURALS)
iosmairteach (WEAK PLURALS)
Other forms
COMPARATIVE
níos iosmairtí
▪ní b'iosmairtí
SUPERLATIVE
is iosmairtí
▪ab iosmairtí