The word "delusionary" refers to something that is characterized by delusions or false beliefs. Antonyms for this word include "realistic," "sensible," "logical," and "practical." Realistic refers to something that is grounded in reality and is based on facts, rather than being influenced by imagination or emotions. Sensible refers to something that is reasonable, practical, and makes sense. Logical pertains to something that is based on reason and sound judgment rather than emotions or personal whims. Practical refers to something that is useful and effective in achieving a particular purpose. These antonyms for "delusionary" are important to use when describing things that are factual, reasonable, or practical.