sticky is on the Basic English 850 List.
stick - sticky - stiff

Word parts change

stick + -y

Pronunciation change

Adjective change

Positive
sticky

Comparative
stickier

Superlative
stickiest

 
Sticky tape.
  1. Able to join to things; hard to wash off. When you touch a sticky thing, some of it goes on your finger. People are able to use a sticky material to join things together.