The Collaborative International Dictionary of English v.0.48:

Infelt \In"felt`\, a. [Pref. in- in + felt.]
   Felt inwardly; heartfelt. [R.]
   [1913 Webster]

         The baron stood afar off, or knelt in submissive,
         acknowledged, infelt inferiority.        --Milman.
   [1913 Webster]