IPA: /pəˈleɪʃəl/
KK: /pəˈleɪʃəl/
Relating to a palace, often large and luxurious in size and design.
The hotel was so palatial that it felt like staying in a royal residence.
Palatial is derived from "palatium" (meaning palace) in Latin, which refers to a grand residence or official dwelling. The suffix "-ial" (meaning relating to) indicates that something is characteristic of or pertaining to a palace. Thus, palatial describes something that is like or resembling a palace, often implying grandeur and luxury.
Think of a 'palace' ('palatium') and remember that 'palatial' means something that is like a palace, suggesting grandeur and luxury.