Aesthetical
Aesthetical is an adjective meaning related to aesthetics, the branch of philosophy dealing with beauty, taste, and art. It is a variant of the more common adjective aesthetic. In modern English, aesthetic is overwhelmingly preferred; aesthetical is used mainly in older texts or in certain formal or British styles.
Etymology: aesthetical derives from Greek aisthētikos “perceptive, pertaining to sense” via Latin aestheticus and French esthétique,
Usage notes: In contemporary usage, aesthetical tends to be rare and can sound archaic or overly formal.
See also: aesthetics, aestheticism, aesthetician, aestheticize.