From Longman Dictionary of Contemporary Englishfantasticalfan‧tas‧ti‧cal /fænˈtæstɪkəl/ adjective STRANGEstrange, unreal, and magical SYN fantastic fantastical creatures with golden wings and lions’ faces
Examples from the Corpus
fantastical• In a moment she would open her eyes to discover that it had all been an incredible, fantastical dream.• But there, behind that gaudy, fantastical temple stood a line of monoliths.• He described a fantastical world populated by mermaids. 