- with gusto and without reservation
"the boy threw himself heartily into his work"

- in a hearty manner
"`Yes,'' the children chorused heartily"
"We welcomed her warmly"

1. From the heart; with all the heart; with sincerity.

"I heartily forgive them." -- Shak.

2. With zeal; actively; vigorously; willingly; cordially; as, he heartily assisted the prince.

To eat heartily
to eat freely and with relish. Addison.

Syn. -- Sincerely; cordially; zealously; vigorously; actively; warmly; eagerly; ardently; earnestly.