"My grandma is a very independent person."
Translation:Mia nonna è una persona molto indipendente.
In Italian there are two groups of adjectives: those ending in -o and those ending in -e.
Adjectives ending in -e are the same for the masculine and the feminine singular. In the plural, the -e changes to -i.
It appears that molto changes with feminine/masculine and singular/plural depending on part of speech it modifies. Adverbial, apparently no change. Adjective of quantity it changes. As a pronoun it changes. Distance and time it doesn't. I haven't figured it all out.