IPA: //ˈsuːpərdɪˈlʌks//
KK: /ˈsuːpərdɪˈlʌks/
Describing something that is of very high quality or luxury, often more than just deluxe.
The hotel offers superdeluxe rooms with stunning views and top-notch amenities.
Superdeluxe → It is formed from "super-" (meaning above or beyond) and "deluxe" (from Latin "deluxis", meaning luxurious or elegant). The word "superdeluxe" means something that is beyond luxurious or of the highest quality.
Think of something that is 'above' ('super-') regular luxury — that's why superdeluxe means exceptionally luxurious.
No commonly confused words.