hardeners
/ˈhɑːrdənərz/
noun
- Substances or agents added to a material to make it hard or firm, especially in paints, varnishes, or adhesives.
- Without the proper hardeners, the glue will stay soft and never set.
- You need to add the hardeners to the paint before applying it to the wall.
- The epoxy kit came with a small bottle of hardeners to mix into the resin.
- Things or people that make someone or something tougher, more resilient, or less sensitive.
- The coach's intense training sessions were hardeners for the young athletes.
- Life's challenges can act as hardeners, building character and strength.
- Some see criticism as hardeners that help them improve their work.