mentirosa
/men-tee-ROH-sah/
liar

The image depicts a woman crossing her fingers behind her back, a common sign of a 'mentirosa' (liar).
mentirosa(Noun)
liar
?A person who habitually lies
fibber
?Used in a gentler or childish context
,deceiver
?Someone who misleads others
📝 In Action
No le creas; ella es una mentirosa terrible.
A2Don't believe her; she is a terrible liar.
Me llamó mentirosa solo porque olvidé la cita.
B1She called me a liar just because I forgot the appointment.
La niña se disculpó por ser una mentirosa con sus padres.
B1The girl apologized for being a fibber to her parents.
💡 Grammar Points
Gender Match
This word is exclusively feminine. It must be used when talking about a female person. For a male person, use 'mentiroso'.
⭐ Usage Tips
A Strong Word
In many contexts, calling someone 'mentirosa' is considered quite insulting or aggressive, so use it carefully outside of very informal settings.

A mask represents something that is 'mentirosa' (lying or deceptive), hiding the truth of an action or statement.
mentirosa(Adjective)
lying
?Describing a statement or action
,deceitful
?Describing nature or character
false
?Describing information
📝 In Action
La historia que nos contó parecía muy mentirosa.
B1The story she told us seemed very false/lying.
No quiero oír otra excusa mentirosa.
B2I don't want to hear another lying excuse.
💡 Grammar Points
Adjective Agreement
As an adjective, 'mentirosa' must agree with the feminine noun it describes, whether it comes before or after the noun: 'una promesa mentirosa' (a lying promise).
❌ Common Pitfalls
Mixing Genders
Mistake: "El historia es mentirosa."
Correction: La historia es mentirosa. ('Historia' is feminine, so the adjective must be feminine.)
✏️ Quick Practice
💡 Quick Quiz: mentirosa
Question 1 of 1
Which sentence correctly uses 'mentirosa' as a noun?
📚 More Resources
Frequently Asked Questions
What is the difference between 'mentirosa' and 'mentiroso'?
'Mentirosa' is the feminine form, used for girls, women, or feminine objects/concepts. 'Mentiroso' is the masculine form, used for boys, men, or masculine objects/concepts. Both mean 'liar' or 'lying'.
How do I say 'a little liar'?
You can add the diminutive ending '-ita' to make it sound smaller or cuter: 'mentirosita'. This is often used when speaking to children or when trying to lessen the severity of the accusation.