Words similar to fruitless

Example sentences for: fruitless

How can you use “fruitless” in a sentence? Here are some example sentences to help you improve your vocabulary:

The devastating military expedition he launched across the Rhineland and Palatinate, and the series of largely fruitless wars with Spain, Holland, England, and Sweden did not endear him to the European people.
Consider the fruitless decades-long effort to produce an AIDS vaccine in primates, the failure to produce even a single case of human AIDS in any primate studied, or the failure to identify even one useful AIDS drug from primate studies.
Trials to improve the health of the other groups to that of the normals would probably be fruitless since there is no evidence that being overweight (for men or women) or obese (for men) affects YOL or YHL.
Portugal finally began to pull itself out of the long and fruitless struggle against revolutionaries in its African colonies, and granted independence to the remaining members of its empire in 1975.
Clinical trials of weight modification interventions for older adults who were merely overweight would appear to be fruitless since the interventions would probably not have a direct effect on either YOL or YHL.