fantastical /fænˈtæstɪkəl/adjective 3noun 1forms 3 adjective3 •Of or pertaining to fantasy. •Fanciful or whimsical. •(rare) Fantastic; wonderful; splendid. noun1 •Something that is fantastical.On New Year's day our borough witnessed a parade of the fantasticals — the immediate body guard of the lately elected redoubtable Col. Sheffler. — 1991 formsfantasticals · more fantastical · most fantastical