1. in a way that does not follow the rules of logic or reason; without sound reasoning

Examples

• He argued illogically that all birds can fly because some birds have wings.
• She illogically concluded that the project would fail without any evidence.
• The witness testified illogically, contradicting herself multiple times.
• They illogically blamed the weather for their poor test scores.
• He illogically assumed everyone would agree with him without explanation.
• The company illogically raised prices while losing customers.