expressive

adjective
1
showing or able to show your thoughts and feelings
بیانگر, گویا, رسا, پرمعنی, معنادار
compare expressionless
2
showing something; existing as an expression of something
بیانگر, نمایان, حاکی, ابرازگر, نمایانگر
Every word and gesture is expressive of the artist's sincerity.