How to Say "egoism" in Spanish
The Spanish word for “egoism” is “egoísmo” — B1 level. This is a very common word in everyday Spanish.

Examples
No es egoísmo, es que necesito descansar.
It's not selfishness, it's just that I need to rest.
Su egoísmo impidió que el equipo ganara el partido.
His selfishness prevented the team from winning the game.
Debemos superar el egoísmo para construir una sociedad mejor.
We must overcome selfishness to build a better society.
Using 'the' with abstract ideas
When talking about 'selfishness' as a general concept, Spanish almost always uses the word 'el' (the) before it. For example: 'El egoísmo es malo' (Selfishness is bad).
Always Masculine
Since this word ends in '-o', it is masculine. Any words describing it must also be masculine, like 'un gran egoísmo'.
Trait vs. Person
Mistake: “Él es mucho egoísmo.”
Correction: Say 'Él es muy egoísta'. 'Egoísmo' is the name of the trait, while 'egoísta' is the word used to describe the person.
Related Translations
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