How to Say "sane" in Spanish
The Spanish word for “sane” is “lúcido” — B1 level.

Examples
A pesar de tener 90 años, mi abuelo está muy lúcido.
Despite being 90 years old, my grandfather is very clear-headed.
El paciente despertó y se encontraba totalmente lúcido.
The patient woke up and was totally lucid.
Necesito estar lúcido para tomar esta decisión tan difícil.
I need to be clear-headed to make this very difficult decision.
Masculine vs. Feminine
This word changes based on who you are talking about. Use 'lúcido' for men and 'lúcida' for women.
Estar vs. Ser
Usually used with 'estar' because mental clarity is often seen as a temporary state, though 'ser' can be used to describe someone who is naturally very sharp.
The Missing Accent
Mistake: “No estoy lucido hoy.”
Correction: No estoy lúcido hoy. Without the accent, it means 'I am not shined' (from the verb lucir) instead of 'I am not clear-headed'.
Related Translations
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