"Aniñarse" is a verb in Spanish that means to act like a child or behave in a childish manner. It is more commonly used in spoken language rather than written context.
Examples
Cada vez que discuten, ella se aniña y pone caritas tristes. (Every time they argue, she acts childish and makes sad faces.)
No te aniñes, necesitamos resolver este problema como adultos. (Don't act like a child, we need to solve this problem like adults.)
Idiomatic Expressions
Important Idiomatic Expressions with "Aniñarse":
Aniñarse en
Meaning: To become stubborn or refuse to change one's attitude or behavior.
Example:Siempre se aniña en sus ideas y no escucha a los demás. (He always becomes stubborn with his ideas and doesn't listen to others.)
Aniñarse ante
Meaning: To submit or yield to someone's authority or demands.
Example:Prefiere aniñarse ante su jefe a tener problemas en el trabajo. (He prefers to submit to his boss rather than have problems at work.)
Etymology
"Aniñarse" comes from the word "niño" which means child in Spanish.
Synonyms and Antonyms
Synonyms: Infantilizarse (to act childishly), comportarse como un niño (to behave like a child).
Antonyms: Madurar (to mature), comportarse como un adulto (to behave like an adult).