Wholeheartedly

He jumped in wholeheartedly and began to learn the language.

[T]hough Augustus and Tiberius discouraged the desire to deify them in their lifetime, Caligula had no sooner expressed his designs on godhead than the Alexandrians wholeheartedly fell in with his wishes, and worshipped him.

Thus unreservedly, promptly, and wholeheartedly did the people of New Mexico, through their chosen representatives, throw themselves and all their resources into the Great War. The Sunshine State fears no storm.

[H]e had a natural bias against all change, and he hated wholeheartedly what he regarded as the central doctrine of the French Revolution, […]

We are wroth with these go-betweens and meddlers—the drifting clouds: these half-and-halfs that have learned neither to bless nor to curse wholeheartedly.

Fans relished the traditional FA Cup fanfare from the Coldstream Guards and the hymn Abide With Me before throwing themselves wholeheartedly into an experience they have been largely deprived of since the first coronavirus lockdown began in March 2020.