Some adjectives are formed from verbs by adding the suffix -nte.
Such adjectives are actually archaic forms of the present participle.
ardere (to burn) ---> ardente (hot)
fortificare (to fortify) ---> fortificante (fortifying)
Other adjectives are derived from the past participles of verbs.
scrivere (to write) --> scritto (written)
contorcere (to twist) --> contorto (twisted)
Adjectives are sometimes formed from nouns by adding the suffixes -so (English -ous) and -ico (English -ic).
miracolo(miracle) --> miracoloso (miraculous)
letargo (lethargy) --> letargico (lethargic)
ADJECTIVES agree in gender and number with the nouns they modify.
Regular adjectives with separate masculine and feminine forms