Found 2 items, similar to indefatigably.
English → English (WordNet) Definition: indefatigably indefatigably adv : with indefatigable energy; “she watched the show indefatigably” [syn: tirelessly, inexhaustibly]
English → English (gcide) Definition: Indefatigably Indefatigably \In`de*fat"i*ga*bly\, adv. Without weariness; without yielding to fatigue; persistently. --Dryden. [1913 Webster]