snipa -nip- gismu

x₁ adheres/sticks to x₂; (adjective:) x₁ is sticky/gummy/adhesive.

Note that x₁ is the adhering surface being claimed; x₂ need not be sticky. See also tarla, viknu.

jbovlaste

In notes:

tarla: x₁ is a quantity of/contains/is made of tar/asphalt from source x₂.
viknu: x₁ is thick/viscous under conditions x₂.
gluli: x₁ is glue/adhesive of composition x₂
gomja: x₁ is a gum/resin/glue of composition x₂; x₁ is gummy/chewy/glutinous