- 1to prevent someone from doing what they want to do synonym frustrate
- 2 thwart something to thwart someone's plans thwart somebody (in something) She was thwarted in her attempt to take control of the party.
NAmE//θwɔrt//[often passive]Verb Forms present simple I / you / we / they thwart
he / she / it thwarts
past simple thwarted
-ing form thwarting