unsuccessfully
un-suc-cess-ful-ly
adverb
In a manner that does not achieve the desired result or outcome.
"She tried unsuccessfully to contact him."
Thesaurus
Antonyms: successfully
un-suc-cess-ful-ly
In a manner that does not achieve the desired result or outcome.
"She tried unsuccessfully to contact him."
Antonyms: successfully