Someone or something that is ~ is likely to persuade a person to believe or do a particular thing.
What do you think were some of the more ~ arguments on the other side?...
I can be very ~ when I want to be...
ADJ
~ly
...a trained lawyer who can present arguments ~ly.
ADV: ADV with v
~ness
He has the personality and the ~ness to make you change your mind.
N-UNCOUNT