Declension table of ?nirdugdha

Neuter	Singular	Dual	Plural
Nominative	nirdugdham	nirdugdhe	nirdugdhāni
Vocative	nirdugdha	nirdugdhe	nirdugdhāni
Accusative	nirdugdham	nirdugdhe	nirdugdhāni
Instrumental	nirdugdhena	nirdugdhābhyām	nirdugdhaiḥ
Dative	nirdugdhāya	nirdugdhābhyām	nirdugdhebhyaḥ
Ablative	nirdugdhāt	nirdugdhābhyām	nirdugdhebhyaḥ
Genitive	nirdugdhasya	nirdugdhayoḥ	nirdugdhānām
Locative	nirdugdhe	nirdugdhayoḥ	nirdugdheṣu

Compound nirdugdha -

Adverb -nirdugdham -nirdugdhāt