Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
inclēmentĭa, ae, f. [inclemens], unmercifulness, rigor, harshness, roughness, severity (poet. and in post-class. prose): divum inclementia, divum, Has evertit opes, Verg. A. 2, 602: durae mortis, id. G. 3, 68: gravis fati, Stat. S. 1, 4, 50: maris, Claud. B. G. 210: caeli, Just. 9, 2: dirae formae (Plutonis), Claud. Rapt. Pros. 1, 82.