The quality of being drivable, of being easy or pleasant to drive
evidentiary
evidentiary
adj
(law) Of or pertaining to evidence.
gradatively
nonvalidity
nonvalidity
noun
The state or condition of being nonvalid.
overacidity
oxidatively
oxidatively
adv
By means of oxidation.
prevalidity
unverdantly
valedictory
valedictory
adj
(Canada, US) Of or pertaining to a valedictorian (“the individual in a graduating class who delivers the farewell address, often the person who graduates with the highest grades”).
Of or pertaining to a valediction (“an act of parting company; a speech made when parting company”); designed for or suitable to an occasion of bidding farewell or parting company.
noun
(specifically, Canada, US) A speech given by a valedictorian at a commencement or graduation ceremony.
An address given on an occasion of bidding farewell or parting company.