The adjective mundane means something very ordinary and not at all interesting or unusual.
Synonyms are banal, day-to-day, normal, or routine.
The word origins from Old French (mid-15th century) mondain meanin “of this world, worldly, earthly, secular”, also “pure, clean, noble, generous” and directly from Late Latin mundanus meaning “belonging to the world” (as distinct from the Church). It also origins from classical Latin “a citizen of the world, cosmopolite”, from mundus meaning “universe, world”, which is identical to mundus meaning “clean, elegant”, but the exact connection is uncertain and the etymology is unknown.
She’s willing to do even the most mundane tasks.
That’s a perfect example of the mundane realities of life.
There’s little glory in mundane tasks but they’re of utmost importance when you always do them with love.