The antonyms for the word "noncontradictory" are "contradictory," "conflicting," "inconsistent," "opposing," "opposite," and "paradoxical." These words imply the opposite meaning of noncontradictory, which refers to something that is coherent, consistent, and logical. Thus, a contradictory statement is one that negates or contradicts itself, while an inconsistent statement lacks harmony or agreement with other ideas or facts. Similarly, an opposing view differs sharply or antagonistically from another, while an opposite notion or concept is entirely different or contrasting. Lastly, a paradoxical statement appears to be self-contradictory or absurd but may have a deeper meaning or significance.