i-adjective
Describes something visually or stylistically excessive, such as overly ornate decoration, heavy makeup, or cluttered design. Often carries a negative or critical tone.
彼女のアクセサリーはごてごてしていて、あまり上品じゃない。
Her accessories are gaudy and not very elegant.
この部屋の装飾はごてごてしすぎだと思う。
I think the decoration in this room is too overdone.