"increasingly uncontrollable" is correct and usable in written English.
You can use it to describe something that is becoming harder to control over time. For example: "We are facing an increasingly uncontrollable situation in our school district due to budget cuts."
The old man has acute, increasingly uncontrollable diarrhea that spills onto his body and the floor and the furniture.
Attempting to keep the Sex Pistols going with the film project that became The Great Rock 'n' Roll Swindle (1980), McLaren issued records with an increasingly uncontrollable Vicious as the vocalist.
His epilepsy was increasingly uncontrollable, Deborah had finally filed for divorce, he was still entangled with Annik and he was dreading the heavy slog of Joy Division's first ever US tour.
"The explosion of cyber attacks against businesses today combined with the variety of security assessment tools in use has left CIOs with an increasingly uncontrollable vulnerability management problem," says Benkoski.
The impending legislation was designed, in part, to quash the increasingly uncontrollable rave scene which had seduced half the nation's youth.
I started musing on the issues of secret agency already in 1970 as the Lutheran heresy trials at Concordia Seminary (St . Louis raged on a tightly-knit, but increasingly uncontrollable campus.
Crane's story conforms to the increasingly cynical formula of modern stardom: uncontrollable urges plus a precipitous decline equals mass appeal.
Reducing greenhouse gas emissions from energy consumption in the UK is increasingly linked to the introduction of uncontrollable sources of power, such as solar PV and wind, and the electrification of energy services (Darby, 2012; Department of Energy and Climate Change, 2013, 2011).
A powerful dynamic ensues, as we increasingly feel helpless, striving to control the uncontrollable.
Except in this scene of his own solitary breakdown, Mr. Matsuyama's Watanabe is a glum, opaque protagonist who registers few emotions beyond a desperate desire to protect Naoko, who is susceptible to uncontrollable bouts of tears and seems increasingly unreachable.
Fourth set: Federer* 4-4 Nadal; Nadaleadsds by two sets to one Federer opens with a superb backhand winner, and - unperturbed by some huge hitting from Nadal on the next point - completes the hold with a sweeping cross-court forehand and another uncontrollable explosion of power from his increasingly awesome right side.
