unfulfilled
UK: ˌʌnfʊlˈfɪld | US: ˌʌnfʊlˈfɪld
adj. not completed or achieved
adj. feeling dissatisfied due to unmet expectations or potential
The word "unfulfilled" combines the negative prefix "un-" (Old English "un-", meaning "not") with the verb "fulfill" (Old English "fullfyllan", from "full" + "fyllan", meaning "to fill completely"). The suffix "-ed" turns it into an adjective. Historically, "fulfill" implied completing an obligation or desire, so "unfulfilled" logically extends to mean "not completed" or "left unsatisfied."
Her dreams remained unfulfilled despite years of effort.
The contract was terminated due to unfulfilled promises.
He felt unfulfilled in his current job and sought a new challenge.
The project was left unfulfilled because of budget cuts.
An unfulfilled life often leads to deep regret.