妄想の定義と意味 | メリアム・ウェブスター医学

DELUSIONAL Definition & Meaning | Merriam-Webster Medical Est. 1828 Medical Definition Definition Entries Near Cite this Entry Citation More from M-W Show more Show more Citation More from M-W Save Word To save this word, you'll need to log in. Log In delusional adjective de·​lu·​sion·​al di-ˈlüzh-nəl, -ˈlü-zhən-ᵊl : relating to, based on, or affected by delusions a delusional patient Browse Nearby Words delusion delusional delusion of reference See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Delusional.” Merriam-Webster.com Medical Dictionary , Merriam-Webster, https://www.merriam-webster.com/medical/delusional. Accessed 2 May. 2026. Copy Citation More from Merriam-Webster on delusional Thesaurus: All synonyms and antonyms for delusional Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Can you solve 4 words at once? Play Play Can you solve 4 words at once? Play Play Word of the Day exasperate See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' Why is '-ed' sometimes pronounced at the end of a word? See More Popular in Wordplay See More The Longest Long Words List 9 Other Words for Beautiful The Words of the Week - May 1 Was 'nervous Nellie' a Real Person? 12 Lovely and Unusual Words for the Natural World See More Popular See More More Commonly Mispronounced Words The Longest Long Words List 9 Other Words for Beautiful See More Games & Quizzes See All Quordle Can you solve 4 words at once? Play Blossom Pick the best words! Play The Missing Letter A daily crossword with a twist Play Name That Tree! A quiz that’s all bark, no bite. Take the quiz See All