Declension table of viruddhatva

Neuter	Singular	Dual	Plural
Nominative	viruddhatvam	viruddhatve	viruddhatvāni
Vocative	viruddhatva	viruddhatve	viruddhatvāni
Accusative	viruddhatvam	viruddhatve	viruddhatvāni
Instrumental	viruddhatvena	viruddhatvābhyām	viruddhatvaiḥ
Dative	viruddhatvāya	viruddhatvābhyām	viruddhatvebhyaḥ
Ablative	viruddhatvāt	viruddhatvābhyām	viruddhatvebhyaḥ
Genitive	viruddhatvasya	viruddhatvayoḥ	viruddhatvānām
Locative	viruddhatve	viruddhatvayoḥ	viruddhatveṣu

Compound viruddhatva -

Adverb -viruddhatvam -viruddhatvāt