unreservedly

adv — 2 senses

adv

Etymology From unreserved + -ly.

In an unreserved manner; showing emotion or lack of restraint.

adv

Etymology From un- + reservedly.

Without reservation or shyness; readily.

I apologize unreservedly.
Monsieur Tarzan would be delighted to place his interests unreservedly in the hands of his friend, Lieutenant D’Arnot.1913, Edgar Rice Burroughs, The Return of Tarzan, New York: Ballantine Books, published 1963, page 49:

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