1. calm, peaceful, or tranquil; unruffled: a serene landscape; serene old age.
2. clear; fair: serene weather.
3. (usually initial capital letter) most high or august (used as a royal epithet, usually preceded by his, your, etc.): His Serene Highness. noun
4. serenity; tranquillity.
5. Archaic. a clear or tranquil expanse of sea or sky.
"commissions can be serene on matters."
"minds can be serene to mysteries."
"commissions can be serene about issues."
"people can be serene."
"republics can be serene."
This list can help you learn new vocabulary more quickly and be able explore other words more easily.