The phrase "at all unlikely" is correct and usable in written English.
It can be used to express doubt or skepticism about the likelihood of something happening.
Example: "Given the circumstances, it is not at all unlikely that we will face further challenges in the project."
Alternatives: "not very likely" or "hardly improbable".
Because companies are made of people and many people specialize in how to bend or break the rules, this is not at all unlikely.
Funding cuts a year later had made any British entrants at all unlikely in Rio and while they do not represent medal prospects they have nonetheless been selected.
It was not at all unlikely that petitioner would be called, like any other employee working in the steel mills at that time irrespective of Communist Party affiliation to relate what instances of infiltration he observed while at work.
"If I am hauled into some sports court [not at all unlikely – actually it could just as well be a real court] and you never hear from me again, here's my minute-by-minute defence".
On one occasion he is said to have remarked to Mr Churchill: "Churchill, it is not at all unlikely that the best thing that can happen to Ireland is that I should be killed in an attempt to redeem its cause".
We'd read in another of our guidebooks that the same team also offered stag parties the unique opportunity to be chased through woods in the dark by baying dogs, which, after our postmodern "Crazy Communism" tour, sounded not at all unlikely.
In the not-at-all-unlikely chance you don't have an Apple II waiting to be dusted off, there's also an emulated web version.
We look at all the "unlikely" things that did happen, rather than all the possible unlikely things, including the ones that didn't happen.
Canal Cafe Theatre, W2, Mon Devon-born stand-up Josh Widdicombe's had a rather unusual comedy career, having started out as an occasional sports subeditor at (of all the most unlikely arenas for humour) the Guardian.
That the game would proceed at all seemed unlikely on Thursday afternoon, when snow still blanketed the field and the stands.
The study highlighted this, stating: "Over half the recruiters who took part in the research repeated their warnings that graduates who have had no previous work experience at all are unlikely to be successful during the selection process and have little or no chance of receiving a job offer for their organisation's graduate programmes".
