stickiest

/ˈstɪkiəst/
adjective
  1. Superlative form of sticky; most adhesive or tacky; covered with the most glue or syrup.
    • After the candy spilled, the floor became the stickiest part of the kitchen.
    • This is the stickiest tape we have in the store.
    • The honey was the stickiest substance she had ever touched.