Lewis & Short

in -frĕquentĭa, ae, f.

  1. I. A small number, thinness, scanliness: summa senatus, Cic. Q. Fr. 3, 2, 2: senatus, Liv. 2, 23, 12: prodita (sc. legionum), the small number of his troops, Tac. A. 15, 10.
  2. II. Solitariness, loneliness: locorum, Tac. A. 14, 27.