Declension table of viruddha

Masculine	Singular	Dual	Plural
Nominative	viruddhaḥ	viruddhau	viruddhāḥ
Vocative	viruddha	viruddhau	viruddhāḥ
Accusative	viruddham	viruddhau	viruddhān
Instrumental	viruddhena	viruddhābhyām	viruddhaiḥ viruddhebhiḥ
Dative	viruddhāya	viruddhābhyām	viruddhebhyaḥ
Ablative	viruddhāt	viruddhābhyām	viruddhebhyaḥ
Genitive	viruddhasya	viruddhayoḥ	viruddhānām
Locative	viruddhe	viruddhayoḥ	viruddheṣu

Compound viruddha -

Adverb -viruddham -viruddhāt