What is an synonyms for smolder?

Here are some synonyms for "smolder," depending on the context:

General:

* Glower

* Burn

* Glow

* Fester

* Seethe

* Brood

* Sizzle

* Scorch

* Kindle

* Ignite

For emotions:

* Anger

* Resentment

* Fury

* Passion

* Desire

* Rage

* Hatred

For physical objects:

* Embers

* Sparks

* Flames

* Smoke

* Char

The best synonym will depend on the specific meaning you want to convey. For example, "smolder" can describe a fire burning without flames, but it can also describe a person who is holding back their anger or passion.