demonstrative

demonstrative is an Adverb

Definition:

[1] Having the nature of demonstration; tending to demonstrate; making evident; exhibiting clearly or conclusively. "Demonstrative figures." Dryden. An argument necessary and demonstrative. Hooker.

[2] Expressing, or apt to express, much; displaying feeling or sentiment; as, her nature was demonstrative.

[3] Consisting of eulogy or of invective. "Demonstrative eloquence." Blair. Demonstrative pronoun (Gram.), a pronoun distinctly designating that to which it refers.