The phrase "a genuine expression of" is correct and usable in written English.
It can be used when describing something that authentically conveys a feeling, sentiment, or idea.
Example: "Her speech was a genuine expression of gratitude towards her supporters."
Alternatives: "an authentic demonstration of" or "a sincere reflection of".
After he died, that song seemed like a genuine expression of angst.
"What we saw there was a genuine expression of concern and involvement.
"A veil is seen as a genuine expression of a woman's religiosity.
"But is it real individuality?" She saw the fanatical pursuit of beauty not as a genuine expression of independence but as a reaction to social and economic pressures.
Hospital officials at the time described the doctors' move as a power play rather than a genuine expression of their misgivings about the medical center.
It also parodies the modern-day folk fan who goes in search of a genuine expression of community identity and finds only Katy Perry karaoke.
Involving older people who are retired and in good health, he said, was an "important part of local action and part of a caring and compassionate society" and "a very genuine expression of a commitment to wellness and wellbeing".
His aesthetic combines some classic Celtic twilight inspirations – although Bantock had better reason than most: although he was born in London, his heritage was Scottish, so his Hebridean Symphony, for example, is a more genuine expression of Scottishness than a mere folklorist fantasy.
Nothing more or less than a distinctly genuine expression of California... that was all".
Disraeli's English history was, in any event, partly fantasy — a bedtime story served up for his none too bright young acolytes, a kind of "Ring" cycle designed for Bertie Wooster — and partly an early, genuine expression of the antibourgeois reaction that has been such a potent strain in modern politics.
According to him, the pogrom was "the first genuine expression of national independence in a former Arab province of the Ottoman Empire" and that the killing of Assyrian Christians was seen as a national duty.
