How to Say "defenseless" in Spanish
The most common Spanish word for “defenseless” is “indefenso” — use this when someone or something is literally lacking any means of protection or defense against a threat or danger, often implying vulnerability.
indefenso
een-deh-FEN-sohindeˈfenso
Examples
El cachorro abandonado se sentía completamente indefenso.
The abandoned puppy felt completely defenseless.
El pequeño gatito se veía muy indefenso en medio de la tormenta.
The little kitten looked very helpless in the middle of the storm.
Sin sus herramientas, el mecánico se sentía indefenso ante el motor roto.
Without his tools, the mechanic felt defenseless before the broken engine.
Las leyes actuales dejan a los consumidores indefensos ante los grandes bancos.
Current laws leave consumers defenseless against big banks.
Matching the Gender
Since this is an adjective, you must change the ending to match the person or thing you are describing. Use 'indefenso' for a male/masculine object and 'indefensa' for a female/feminine object.
Using 'Estar' vs 'Sentirse'
We usually use this word with 'estar' (to be) to describe a current state of lack of protection, or 'sentirse' (to feel) to describe the emotion of being vulnerable.
Don't confuse with 'Harmless'
Mistake: “Ese perro no muerde, es indefenso.”
Correction: Ese perro no muerde, es inofensivo.
desarmado
dess-ar-MAH-dohdesarˈmaðo
Examples
La policía detuvo al ladrón mientras estaba desarmado.
The police stopped the thief while he was unarmed.
El sospechoso estaba desarmado cuando llegó la policía.
The suspect was unarmed when the police arrived.
No puedes entrar en esa zona tan peligrosa desarmado.
You cannot enter that dangerous area unarmed.
Me dejó desarmado con sus palabras tan sinceras.
She left me defenseless with her very sincere words.
Matching the Person
Since this is an adjective, you must change the ending to match who you are talking about: 'desarmado' (man), 'desarmada' (woman), 'desarmados' (men/mixed), 'desarmadas' (women).
Using 'Estar' for States
Use the verb 'estar' (to be) with this word because being unarmed is usually a temporary condition or state of being.
Unarmed vs. Harmless
Mistake: “Using 'desarmado' to mean 'harmless' in a general sense.”
Correction: Use 'inofensivo' for 'harmless'. 'Desarmado' specifically means lacking a weapon or physical defense.
vulnerable
voo-lneh-RAH-blehbulneˈɾable
Examples
Los niños pequeños son vulnerables a las enfermedades contagiosas.
Young children are vulnerable to contagious diseases.
Los ancianos son un grupo especialmente vulnerable al frío.
Elderly people are a group especially vulnerable to the cold.
El sistema informático resultó ser vulnerable a un ataque sencillo.
The computer system turned out to be vulnerable to a simple attack.
Cuando te enamoras, te sientes muy vulnerable.
When you fall in love, you feel very vulnerable.
Adjective Agreement (Number)
Since 'vulnerable' ends in '-e', it doesn't change based on whether the noun is masculine or feminine (es: 'la zona vulnerable', 'el grupo vulnerable'). However, you must add an '-s' for plural nouns: 'zonas vulnerables' or 'grupos vulnerables'.
Using the wrong verb
Mistake: “Estar vulnerable”
Correction: Ser vulnerable. Because vulnerability is usually a defining characteristic or a long-term state, you almost always use 'ser' (to be) instead of 'estar' (to be, temporary state). 'Ella es vulnerable' (She is vulnerable) is correct.
Confusing 'indefenso' and 'desarmado'
Related Translations
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