Declension table of ?niśārthaka

Neuter	Singular	Dual	Plural
Nominative	niśārthakam	niśārthake	niśārthakāni
Vocative	niśārthaka	niśārthake	niśārthakāni
Accusative	niśārthakam	niśārthake	niśārthakāni
Instrumental	niśārthakena	niśārthakābhyām	niśārthakaiḥ
Dative	niśārthakāya	niśārthakābhyām	niśārthakebhyaḥ
Ablative	niśārthakāt	niśārthakābhyām	niśārthakebhyaḥ
Genitive	niśārthakasya	niśārthakayoḥ	niśārthakānām
Locative	niśārthake	niśārthakayoḥ	niśārthakeṣu

Compound niśārthaka -

Adverb -niśārthakam -niśārthakāt