Auto-suggestion is a concept that refers to the ability of an individual to influence their own thoughts and behaviors through self-affirmation or repetition of positive affirmations. The concept is often associated with the practice of hypnosis, where a person is induced to enter a state of heightened suggestibility. Antonyms for auto-suggestion include disaffirmation, disbelief, and negative self-talk. These terms describe a state of mind where a person is actively rejecting positive thoughts and affirmations, often due to low self-esteem or negative past experiences. While auto-suggestion can be a powerful tool for personal development, it must be used in conjunction with other strategies such as cognitive-behavioral therapy to achieve lasting results.