English Antonyms Practice Test 3

Culminate : reach a climax or point of highest development.
Frustrate : prevent (a plan or attempted action) from progressing, succeeding, or being fulfilled.
Fail : be unsuccessful in achieving one's goal.
Abort : carry out or undergo the abortion of (a fetus).
Defeat : win a victory over (someone) in a battle or other contest; overcome or beat.

Antonym of Culminate is Abort