How to Say "doormat" in Spanish
The Spanish word for “doormat” is “cordero” — B2 level.
English → SpanishB2
nounB2
informal, referring to someone easily manipulated

Examples
Ella parece muy fuerte, pero en el fondo es un cordero.
She seems very strong, but deep down she is a lamb (very gentle).
Cuando está con su jefe, se vuelve un cordero y acepta todo.
When he is with his boss, he turns into a lamb and accepts everything.
Figurative Gender
In this figurative sense, cordero usually remains masculine even if you are describing a woman's personality. You are comparing her to 'the lamb' archetype.
Using the Feminine Form
Mistake: “Using *corder* or *cordera* to mean a gentle person.”
Correction: Stick to *cordero* for the personality trait, regardless of the person's gender. *Cordera* usually just means a female lamb (the animal).
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