noun
- a person who prevents or obstructs something from happening
Examples
- The persistent thwarter blocked every attempt at reform.
- She proved to be an effective thwarter of his ambitious plans.
- The committee identified him as the main thwarter of progress.
- Every project needs someone to watch out for potential thwarters.
- The thwarter’s constant objections slowed down the meeting.
- He earned a reputation as a thwarter of innovative ideas.