Sagaz (en. Sagacious)
/saˈɣas/
Slang Meanings
Being very shrewd in business.
That guy is very shrewd; he always gains an advantage in negotiations.
Ese chico es muy sagaz, siempre saca ventaja en las negociaciones.
Having a good perception of people.
Just by looking at someone, she knows if they are shrewd or not.
Con solo mirar a alguien, ella sabe si es sagaz o no.