Ser vs Estar with Adjectives

Same word, different meaning. Listo, aburrido, malo, rico and more.

Same adjective, different meaning

AdjectiveSer (permanent trait)Estar (state/condition)
listoser listo = to be cleverestar listo = to be ready
aburridoser aburrido = to be boringestar aburrido = to be bored
maloser malo = to be bad/evilestar malo = to be sick
buenoser bueno = to be good (character)estar bueno = to be tasty/attractive
ricoser rico = to be richestar rico = to be delicious
seguroser seguro = to be safeestar seguro = to be sure
vivoser vivo = to be sharp/brightestar vivo = to be alive
verdeser verde = to be green (color)estar verde = to be unripe
orgullososer orgulloso = to be arrogantestar orgulloso = to be proud
atentoser atento = to be thoughtfulestar atento = to be attentive/alert

The logic behind the difference

Ser = what something IS (essence). Estar = how something IS (state).

La película es aburrida. (The movie is boring. — that's its nature)
Estoy aburrido. (I'm bored. — that's how I feel now)
Juan es listo. (Juan is clever. — his character)
Juan está listo. (Juan is ready. — his current state)

Always ser or always estar

Always SER:

Nationality: Es española. | Profession: Es médica.
Material: Es de madera. | Time: Son las tres.
Identity: Es mi hermano. | Origin: Es de México.

Always ESTAR:

Location: Está en Madrid. | Progressive: Está comiendo.
Dead/alive: Está muerto. | Result of change: Está roto.

Quick quiz

1. Juan es listo = Juan is _____.

2. Juan está listo = Juan is _____.

3. La película _____ aburrida. (the movie IS boring — its nature)

4. _____ aburrido. (I'm bored — my current state)

5. Esta paella _____ rica. (it's delicious)

6. Él _____ rico. (he's wealthy)

7. _____ seguro de que viene. (I'm sure)

8. Este barrio _____ seguro. (it's safe — characteristic)

9. María _____ mala hoy. (she's sick)

10. El plátano _____ verde. (unripe — state)

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