1. to prevent someone from accomplishing something; to make efforts unsuccessful
Usage: third person singular present tense of ‘frustrate’
2. to cause someone to feel upset or annoyed because they cannot achieve what they want
Usage: third person singular present tense of ‘frustrate’

Examples

• The heavy traffic frustrates commuters every morning.
• Bad weather often frustrates outdoor wedding plans.
• It frustrates her when the computer runs slowly.
• The puzzle frustrates him because he can’t solve it.
• Poor internet connection frustrates students during online classes.
• The locked door frustrates his attempt to enter the building.