Definitions:

1. Gaudy, showy, or cheap in appearance or style, often lacking refinement or subtlety. ADJECTIVE
   • The decorations were colorful by looked a bit tacky.
   • Wearing that much glitter to formal events is just tacky.
2. Refers to something in poor taste or of low quality, often flashy, garish, or overly showy. ADJECTIVE
   • The tacky plastic flowers on the table made the room look cheap and uninviting.
3. Somewhat sticky or adhesive to the touch, but not fully dry. ADJECTIVE
   • The glue felt tacky, so I waited before pressing the surfaces together.

Synonyms:

• adhesive
• Gaudy
• gummy
• sticky
• tasteless
• vulgar