Surmount is a verb that means to overcome a difficulty or obstacle. Antonyms for this word would be terms that describe situations where you are unable to overcome challenges, such as failing or being defeated. Some antonyms for the word surmount include being defeated, succumbing, losing hope, giving up, surrendering, submitting, weakening, and falling short. While it is important to strive for success and work to overcome challenges, it is also important to recognize that setbacks and failures are a natural part of the process. Accepting and learning from these experiences help us grow and ultimately achieve greater success in the long run.