unsuccessful

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In the 17th century, Gottfried Wilhelm Leibniz devised an unsuccessful scheme to turn Aristotle’s system of logic into arithmetic.

From The Wall Street Journal • Mar. 29, 2026

We will present four successful and numerous unsuccessful formulations.

From Science Daily • Mar. 26, 2026

The launch, however unsuccessful, suggests that Iran has not been transparent about its missile programme.

From BBC • Mar. 23, 2026

Attorneys for the Ramos family have appealed the decision, but if that appeal is unsuccessful the family could be deported to Ecuador.

From Salon • Mar. 19, 2026

But whether it was too successful love or whether he left in pique at unsuccessful love, I do not know.

From "East of Eden" by John Steinbeck