unpleading
/ʌnˈpleɪdɪŋ/Definitions
1. adjective
Not making a plea or appeal; not being persuasive or attractive
“The unpleading nature of the proposal made it hard to win the investors over.”
2. noun
The quality of being not making a plea or appeal; lack of persuasiveness
“The unpleadingness of the speech was a major turn-off for the audience.”