Inesorabile translates to "inexorable" or "relentless". It's a strong and somewhat formal word that isn't commonly found in everyday song lyrics, making it stand out.
In the context of the song, Gazzelle uses it to describe the feeling that everything is constantly collapsing, stating, "Ed ogni giorno crolla tutto, è inesorabile." This emphasizes a sense of inevitability and powerlessness against the relentless march of time and problems, adding a dramatic and profound layer to the lyrics.
Gazzelle's "Qualcosa Che Non Va" is all about that nagging feeling inside when things just aren't right, even if on the surface you're saying "È tutto a posto" [Everything's fine]. He talks about how everything comes with a cost now, like his face being "piena di 'mannaggia'" [full of 'damn it's'] and his eyes "pieni di ricordi" [full of memories]. It's a really relatable feeling of things crumbling daily, "inesorabile" [inexorable], like being tiny under volcanoes or drenched in tears.
He keeps coming back to this idea of having "qualcosa che non va" [something that's not right] inside, and not quite knowing what it is, just that it's there. He even wonders if he should talk to a friend, but then questions, "Anche se lui è sparito oppure sono sparito io" [Even if he's disappeared or I've disappeared]. It's a candid look at feeling lost and a bit nostalgic, remembering a time when he was a child and "sorridevo" [I smiled].