In a wholehearted manner; with one's whole heart; enthusiastically; without reserve.(adverb)
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Use "wholeheartedly" in a sentence
"These were characters I knew, this was a story I believed in wholeheartedly and I would have the outline; it would be cakewalk."
"Nor does it mean that I will stop advocating for direct wine shipping, which I believe in wholeheartedly and have dedicated more time to than I can possible quantify over the last year and a half."
"I don't hold out much hope for a dialogue with people who go in wholeheartedly for the rapture stories."