The phrase "grow impassioned" is correct and usable in written English.
It can be used when describing someone becoming increasingly passionate or enthusiastic about a subject or situation.
Example: "As the discussion progressed, the audience began to grow impassioned about the topic of climate change."
Alternatives: "become fervent" or "grow passionate."
Some of the elation of those front pages sparks back into his eyes, and his voice, though frail, grows impassioned.
She grows impassioned as she explains to me her mission, thumping the hotel table between us as she speaks.
Growing impassioned while speaking to a reporter on Saturday, Khalil al-Balawi harshly criticized intelligence officials for his son's change.
Only John Melia, a spokesman for Local 1-2 of the Utility Workers Union of America, the union representing the locked-out workers, grows impassioned, in the manner of a kamikaze pilot espying a large aircraft carrier.
Domenici knew that he was growing impassioned about an issue that many of his colleagues would consider marginal, even distasteful, and that he needed colleagues who had been shaken personally, too.
The rest of the band plugged into the action too: the singer Luciana Souza sang the mostly wordless melodies with her spring-clear, accurately pitched, nearly vibratoless voice, playing cowbells and triangles to add to the rhythm; the bassist Essiet Essiet played busily and percussively; and Donny McCaslin, on saxophones and clarinet, contributed improvisations that grew impassioned.
Similarly, Donavin White, a 54-year-old social studies teacher, grew impassioned speaking on the subject of his students.
His voice grew impassioned as he spoke of the scale of Soviet losses in World War II.
After... the total ransacking of the third world, the only time we get pissed off is when it comes home and bites us on the ass, and everybody's up in arms about it," he said, growing impassioned.
I grew impassioned to revamp official dialogue between our nations; it became my ambition and my "mission" to bring Cuba out of the history books and start writing a new chapter.
