'seemingly sustained' is a correct and usable term in written English.
You can use it when you want to suggest something is enduring or lasting despite difficult odds. For example, "The company has seen many downturns, but their success has been seemingly sustained."
Although he barely slept and seemingly sustained himself on candy, cold pizza and long runs, he left his mark.
It is not all bleak: the play studies a marriage seemingly sustained by booze – yet which somehow works.
The challenge for Jovetic will certainly be greater than usual if Vucinic – who seemingly sustained a thigh injury during Juventus's Champions League draw with Galatasaray last week and was absent from the weekend's Serie A match with Milan – is not there with him.
The economy of communication on the wards studied here is seemingly sustained in a multifaceted communication practice that, in fact, goes beyond numerical representation.
Is very angry, all the time, and can seemingly sustain that indefinitely.
He then laid into breakthrough youngster Scott McTominay and left-back Luke Shaw, with criticism of the latter seemingly sustaining Mourinho's life force at this point.
A glittering, shimmering, light-filled chord begins Transitoires; the music then seems to stop time with its pregnant pauses, and with echoes of sounds – a guttural double-bass growl, a low gong, a mysterious middle-distance drone – that are sustained, seemingly into the infinite.
In previous years, I'd been very good at leaning against the hallway wall, seemingly unable to sustain the shock of being confronted with so much horror.
They show that the company regularly earns more than 50% on its shareholders' equity — seemingly impossible to sustain.
Paul Pogba sustained Juventus's seemingly inexorable march towards a fifth straight Serie A title by completing a 2-1 comeback victory over Milan at San Siro.
Yet Ramsey grapples daily with the sobering reality that what he wants to achieve most — helping Sarah make a full recovery from a severe stroke she sustained in 2007 — seemingly cannot be done.
