genius

noun (plural geniuses)

• 1exceptional intellectual or creative power or other natural ability:she was a teacher of genius Gardner had a real genius for tapping wealth

• 2a person who is exceptionally intelligent or creative, either generally or in some particular respect:one of the great musical geniuses of the 20th century

• 3 (plural genii /ˈjēnēˌī/) (in some mythologies) a guardian spirit associated with a person, place, or institution.
• a person regarded as exerting a powerful influence over another for good or evil:he sees Adams as the man’s evil genius

• 4 (plural genii) the prevalent character or spirit of something such as a nation or age:Boucher’s paintings did not suit the austere genius of neoclassicism

adjective

• very clever or ingenious:a genius marketing ploy this book was absolutely genius in parts