The adjectives in spanish: Los adjetivos

Demostrativos: Demonstratives

Posesivos: Possessive

Este: this


mi: my

nuestro/a: our

Esta: this

Esa: that

tu: your

vuestro: your

Estos: these

Esos: those

su: their

Estas: these

Esas: those

su: his/her*

*In spanish there is no difference between "his" or "her" you always use "su". On the other hand with "this" and "that" they change in spanish depending on the gender of the substantive that comes next, just like the articles.