Declension table of sthira

Neuter	Singular	Dual	Plural
Nominative	sthiram	sthire	sthirāṇi
Vocative	sthira	sthire	sthirāṇi
Accusative	sthiram	sthire	sthirāṇi
Instrumental	sthireṇa	sthirābhyām	sthiraiḥ
Dative	sthirāya	sthirābhyām	sthirebhyaḥ
Ablative	sthirāt	sthirābhyām	sthirebhyaḥ
Genitive	sthirasya	sthirayoḥ	sthirāṇām
Locative	sthire	sthirayoḥ	sthireṣu

Compound sthira -

Adverb -sthiram -sthirāt