Supersticioso (en. Superstitious)

/supersˈtisioso/

Synonyms

Person who believes in absurd things.

That guy is superstitious; he thinks that wearing a talisman brings him luck.

Ese tipo es un supersticioso, piensa que llevar un amuleto le trae suerte.

Someone who avoids certain numbers or actions.

Don't invite Juan; he's so superstitious that he doesn't want to see the number 13.

No invites a Juan, es tan supersticioso que no quiere ver el 13.