Definition: The word "participial adjective" is a term used in linguistics to describe a word that can be used as an adjective modifying the subject or verb. These adjectives are often used to indicate possession, such as a possession participle or possessive. For example: 1. A: The dog was very happy to see the cat. - The dog is a participial adjective modifying "to see" indicating that it possesses the act of seeing. 2. A: She spent her day playing with her sister. - She is a participial adjective modifying "spent" indicating that she is one of several persons who spend a particular time, and that it is a collective or ensemble of people who share in this time. The word 'participial adjective' is used to give specific characteristics or qualities of the subject or verb. It can be used as an adverb, adjective, or adverbial phrase modifying a noun, verb, or other adverb.