"limitless ambition" is correct and usable in written English.
You can use it to describe someone with extraordinary determination and a willingness to work hard towards achieving their goals. For example, "With his limitless ambition and sheer dedication, he achieved success in his chosen field of work."
"Her brown eyes," he added, "reflected a limitless ambition".
His full-force rendition of "Out There," from the musical "Barnum," infused this proclamation of limitless ambition with a militant fervor.
It was an extraordinarily bold claim, but one that captured the sense of hope, imagination and limitless ambition which is the hallmark of the great American dream.
What do I say to them when they hear me talking about cocaine like it's a beautiful woman?" Behind all these questions is someone with seemingly limitless ambition.
Immortalized in Werner Herzog's 1982 film "Fitzcarraldo," he was a man of limitless ambition who bloodily installed himself as Peru's Rey del Caucho — the Rubber King.
In the end "Babel," like that tower in the book of Genesis, is a grand wreck, an incomplete monument to its own limitless ambition.
"Read what the Ninth Protocol of 'The Protocols of the Elders of Zion' says: 'We have limitless ambitions, inexhaustible greed, merciless vengeance and hatred beyond imagination.
However rational and limited these aims and plans seemed in Spain, in the rest of Europe they appeared to show only too clearly the limitless ambitions of the house of Austria.
Just as Auto-Tune had shaped 808s & Heartbreak and offered a sonic articulation of the record's themes of grief and loss, the limitless ambitions of these avant garde producers proved to be exactly what Kanye needed on Yeezus bizarre, alien and angry production for an album that set out to challenge the status quo.
Holbrooke, whose temper knows no bounds, is insufferable, of course; but, no matter what his limitless ambitions were in the 90s (he hoped to be Secretary of State, as his charming Hungarian-born wife informed me in a Belgrade restaurant, at a lunch for Serb intellectuals I helped put together -- I was amazed by her candor) he did try to end war in the Balkans.
And we know how that ended".Mr Renzi is certainly a man of boundless ambition and virtually limitless self-confidence.
