- 1 [uncountable] the feeling of being frustrated Dave thumped the table in frustration. She couldn't stand the frustration of not being able to help. sexual frustration
- 2[countable, usually plural] something that causes you to feel frustrated Every job has its difficulties and frustrations. Inevitably she took out her frustrations on the children.
- 3[uncountable] frustration of something (formal) the fact that something is preventing something or someone from succeeding the frustration of all his ambitions