The word "convincible" means capable of being convinced or persuadable. Its antonyms, meaning the opposite or contrary, are unconvinced, unconvincing, unimpressible, unimpressionable, unpersuadable, and unpersuasive. These words imply a hardened or unyielding stance, where logical arguments and sound reasoning may have no effect. Some people are naturally more resistant to persuasion, while others may be swayed with the right approach. Knowing the antonyms for "convincible" can help us understand the diversity of human reactions to ideas and information, and allow us to communicate more effectively with others who hold opposing opinions or beliefs.