Declension table of ?akathya

Neuter	Singular	Dual	Plural
Nominative	akathyam	akathye	akathyāni
Vocative	akathya	akathye	akathyāni
Accusative	akathyam	akathye	akathyāni
Instrumental	akathyena	akathyābhyām	akathyaiḥ
Dative	akathyāya	akathyābhyām	akathyebhyaḥ
Ablative	akathyāt	akathyābhyām	akathyebhyaḥ
Genitive	akathyasya	akathyayoḥ	akathyānām
Locative	akathye	akathyayoḥ	akathyeṣu

Compound akathya -

Adverb -akathyam -akathyāt