IPA: /ˈmjʊr.əld/
KK: /ˈmjʊr.əld/
Describing something that has been decorated with a large painting or artwork, typically on a wall.
The muralled walls of the gallery attracted many visitors.
Muralled → It is formed from "mural" (from Latin *muralis*, meaning of or pertaining to a wall) and "-ed" (a suffix used to form the past tense or past participle). The word "muralled" refers to something that has been decorated or painted on a wall.
Think of 'mural' as something related to a wall, and remember that 'muralled' means it has been painted or decorated on that wall.