Lewis & Short

ĭn-explēbĭlis, e, adj. [2. in-expleo], that cannot be filled, insatiable (class.).

  1. I. Lit.: inexplebilis potu, Plin. 11, 25, 30, § 88. stomachus, Sen. Ep. 89 fin.; cf.: populi fauces, Cic. Rep. 1, 43, 66.
  2. II. Trop.: cupiditas, Cic. Tusc. 5, 6, 16: vir inexplebilis virtutis veraeque laudis, Liv. 28, 17, 2: honorum fames, Flor. 3, 21, 6: colloquiorum, Sen. Cons. ad Helv. 15, 1.