What is the meaning of Guarded?

simple past and past participle of guard

Cautious; restrained.

A good outcome has fair odds of happening but close monitoring is important because odds of deterioration are not low.

Watched over; supervised.

Having a guard, e.g. a crossguard (on a sword), a faceguard (on a helmet), or a hatguard (on a chapeau).

Source: wiktionary.org