whimsy[noun]Synonyms: caprice, boutade, conceit, crotchet, fancy, freak, humor, megrim, vagary, whim
Related Words: idea, 
disposition, 
inclination, 
thought, 
dream, 
fantasy, 
vision [TahlilGaran] English Synonym Dictionary ▲
 whim‧sy /ˈwɪmzi/ 
 noun[
Date: 1600-1700; 
Origin: whim-wham;  ⇒ whim] 
[uncountable] a way of thinking, behaving, or doing something that is unusual, strange, and often amusing: 
 a sense of fancy and whimsy
 a sense of fancy and whimsy  [TahlilGaran] Dictionary of Contemporary English ▲