Declension table of ?tīkṣṇāgra

Neuter	Singular	Dual	Plural
Nominative	tīkṣṇāgram	tīkṣṇāgre	tīkṣṇāgrāṇi
Vocative	tīkṣṇāgra	tīkṣṇāgre	tīkṣṇāgrāṇi
Accusative	tīkṣṇāgram	tīkṣṇāgre	tīkṣṇāgrāṇi
Instrumental	tīkṣṇāgreṇa	tīkṣṇāgrābhyām	tīkṣṇāgraiḥ
Dative	tīkṣṇāgrāya	tīkṣṇāgrābhyām	tīkṣṇāgrebhyaḥ
Ablative	tīkṣṇāgrāt	tīkṣṇāgrābhyām	tīkṣṇāgrebhyaḥ
Genitive	tīkṣṇāgrasya	tīkṣṇāgrayoḥ	tīkṣṇāgrāṇām
Locative	tīkṣṇāgre	tīkṣṇāgrayoḥ	tīkṣṇāgreṣu

Compound tīkṣṇāgra -

Adverb -tīkṣṇāgram -tīkṣṇāgrāt