IPA: /ɛsˈθɛtɪkəl/
KK: /ɛsˈθɛtɪkəl/
Related to beauty or the appreciation of beauty.
The esthetical design of the building attracted many visitors.
Aesthetical → It is formed from "aesthetikos" (from Greek, meaning perceptible or relating to perception) and the suffix "-al" (meaning pertaining to). The word "aesthetical" refers to something that pertains to beauty or the appreciation of beauty.
Think of 'aesthetikos' which relates to perception and beauty — that's why 'aesthetical' means pertaining to beauty.