1de·mon·stra·tive 
/dɪˈmɑ:nstrətɪv/ adjective
/dɪˈmɑ:nstrətɪv/ adjective 1 [more demonstrative; most demonstrative] formal : freely and openly showing emotion or feelings
▪ She is more demonstrative (about her feelings) than I am. [=she shows her feelings more openly than I do] 2 grammar : showing who or what is being referred to
▪ In the phrase “this is my hat,” the word “this” is a demonstrative pronoun. ▪ In the phrase “give me that book,” the word “that” is a demonstrative adjective.
▪ She is more demonstrative (about her feelings) than I am. [=she shows her feelings more openly than I do]
▪ In the phrase “this is my hat,” the word “this” is a demonstrative pronoun. ▪ In the phrase “give me that book,” the word “that” is a demonstrative adjective.
