unsuccessful
/ˌʌnsəkˈsɛsfl̩/ adjective B2- Failed, not successful. · His unsuccessful attempt earned him sympathy, condolences, and an occasional good-natured ribbing.
From the library
He came back at night weary and unsuccessful.
It was then he rejoiced at his precaution in taking the timber, for without it he would have been unable, perhaps, to reach the vessel—certainly to return to shore, should he be unsuccessful in attracting attention.
He has already dug up all the garden two or three times to find the famous spring, and, being unsuccessful, he will soon purchase all the contiguous houses.
But three weeks had already passed, and the most diligent search had been unsuccessful; the attempted robbery and the murder of the robber by his comrade were almost forgotten in anticipation of the approaching marriage of Mademoiselle Danglars to the Count Andrea Cavalcanti.
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