What's the difference between affability and inaffability?

Affability

Definition:

(n.) The quality of being affable; readiness to converse; courteousness in receiving others and in conversation; complaisant behavior.

Example Sentences:

(1) The claim has stunned a community who knew him not as a pale spectre in Taliban videos but as the tall, affable young man who served coffee and deftly fended off jokes about Billy Elliot – he did ballet along with karate, fencing, paragliding and mountain biking.
(2) He is affable but hyperactive, or maybe he has consumed too much white powder.
(3) As a businessman I had an obligation.” He also contrasted his alleged affability with Clinton’s remark during the first Democratic debate that she viewed Republicans as “an enemy”.
(4) When he appeared on Desert Island Discs, for example, Kirsty Young expressed surprise that he was so affable and giving, wondering aloud why she might have thought otherwise.
(5) Musk has a reputation for being prickly but when I meet him at SpaceX , his headquarters west of Los Angeles, he is affable and chatty, cheerfully expounding on space exploration, climate change, Richard Branson and Hollywood.
(6) His decisiveness and affability were valuable assets, but much more than this, he was one of the few who sought both to understand and to explain what was happening.
(7) It turns up at quarter to ten, deposited by an affable chap in a uniform.
(8) Lucky Richard was assigned to Poke ’s most affable hosts, the restaurant critic Tracey MacLeod and her colleague, the rapper LL Cool J , who plied him with fudge and polystyrene all day, while I was understandably ignored by my master, a capable young comic newspaper columnist called Michael Andrew Gove.
(9) Talha Asmal, 17, from Dewsbury, West Yorkshire , who reportedly detonated a vehicle fitted with explosives while fighting for the militant group in Iraq, was described as “a loving, kind, caring and affable teenager” by his devastated family.
(10) Speaking after the event, which was not open to journalists, the shareholder described Grade as "affable", but questioned whether he had delivered for investors.
(11) But in the meantime, they can continue to muddle along as they are: affable, a bit posh and fine with it.
(12) It's all the fault of that blasted weather, of course, but the affable Stan Wawrinka isn't happy, the Swiss taking aim at the tournament organisers for messing up his schedule, making him play a possible five matches in seven days and potentially wrecking his hopes of adding to the Australian Open he won in January.
(13) He was bright, intrepid, determined and full of character ... A very talented footballer and magnificent marine he had a lot to be proud of, yet I knew him to be an affable, generous, loyal and modest young man."
(14) Rwanda has a flourishing economy and well-oiled PR machine, and the affable Kagame uses that most democratic of media, Twitter .
(15) Some people have encountered an affable man with a beard and a hat.
(16) Boehner was referring to a Wall Street Journal report quoting an unnamed "senior administration official" as saying: “We are winning…It doesn’t really matter to us” how long the shutdown lasts “because what matters is the end result.” Boehner says he's known for his affable demeanor and fair-mindedness.
(17) By contrast it was the outwardly affable Harold Macmillan who pulled off a gruesome "night of the long knives", ditching a third of his cabinet overnight in an exercise named after Hitler's rather bloodier dispatching of his own lieutenants in the SA.
(18) Its affable 79-year-old owner, Salome Gutiérrez, has extended Del Bravo to include a Tejas y su Musica (The Texas Music Museum) honouring Lydia and other local artists.
(19) If Obama can get his proposals through Congress, the affable economist will have a lasting memorial in the Volcker Rule.
(20) He described O'Brien as a "very affable, warm and hospitable" man who was always unafraid to speak his mind.