What is the synonyms of frustrated?

Here are some synonyms for frustrated, depending on the specific context:

General Frustration:

* Annoyed

* Disappointed

* Disheartened

* Discouraged

* Exasperated

* Irritated

* Outraged

* Upset

* Vexed

Frustration with a Lack of Progress:

* Blocked

* Impasse

* Stuck

* Stalemated

* Hampered

* Thwarted

Frustration with a Specific Goal:

* Defeated

* Doomed

* Hopeless

* Pointless

* Unfulfilled

Frustration with Emotions:

* Angry

* Bitter

* Resentful

* Angry

Formal Synonyms:

* Discomfited

* Disgruntled

* Disillusioned

* Dismayed

Informal Synonyms:

* Bent out of shape

* Cheesed off

* Fed up

* P*ssed off (be careful using this one!)

The best synonym for you will depend on the specific situation and the tone you want to convey.