1. excessive or excessive ornamentation; the act or result of decorating something too much or with too many embellishments
Usage: uncountable noun; often used as a criticism in design and interior decoration contexts

Examples

• The overdecoration of the Victorian mansion made it feel cluttered rather than elegant.
• Interior designers often warn against overdecoration when working with small spaces.
• The cake's overdecoration with glitter and fondant flowers obscured its actual flavor.
• Modern minimalist trends reject the overdecoration that characterized earlier design periods.
• She toned down the overdecoration in her office to create a more professional atmosphere.
• The overdecoration of the holiday display was so excessive that it looked tacky.