Declension table of susthira

Neuter	Singular	Dual	Plural
Nominative	susthiram	susthire	susthirāṇi
Vocative	susthira	susthire	susthirāṇi
Accusative	susthiram	susthire	susthirāṇi
Instrumental	susthireṇa	susthirābhyām	susthiraiḥ
Dative	susthirāya	susthirābhyām	susthirebhyaḥ
Ablative	susthirāt	susthirābhyām	susthirebhyaḥ
Genitive	susthirasya	susthirayoḥ	susthirāṇām
Locative	susthire	susthirayoḥ	susthireṣu

Compound susthira -

Adverb -susthiram -susthirāt