Simple past tense and past participle of decorate.(verb)
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Use "decorated" in a sentence
"Christmas tree — A popular look in decorated trees this year is a tree of all the same color, or monochromatic."
"MANASSAS "TRUNK" OR TREAT, for fifth-graders and younger children, treats in decorated car trunks, hayrides, moon bounces, games and food. 6-8 p.m.,"
"“Working with BOOM! on this has been a dream: a funny, twisted, violent dream about humans, ogres, and orcs fighting over a prized pigskin decorated with sharp and shiny spikes.”"