Antonyms for the phrase "makes speechless" could include words like inspire, motivate, provoke, incite, or stimulate, all of which imply the opposite effect of rendering someone incapable of speech. Instead, these words describe actions or situations that are likely to stir someone's emotions or thoughts, leading them to express themselves in a more fervent and articulate manner. Other antonyms could include words like articulate, eloquent, or expressive, which suggest that someone is able to convey their thoughts and feelings with great clarity and coherence, rather than being at a loss for words. Ultimately, the opposite of being speechless is being able to speak freely and confidently.