"hidden anger" is a correct and usable phrase in written English.
It can be used to describe anger that is not openly expressed or displayed. Example: Despite her smile, there was a hint of hidden anger in her tone as she confronted her coworker about taking credit for her work.
He concluded that white perceptions of native privilege and corruption constitute "Canada's most hidden anger," and that the deep split between natives and immigrant Canadians is the country's greatest division.
Slapping both palms down onto his thighs he sighs with barely hidden anger and faces away, before sharply turning and … "Look, why is it you guys are so hung up with this gay thing!
A passive aggressive adult is an expert in getting others to act out on their hidden anger by painting them as the culprit.
Edna readily admitted her anxiety over the family event, her hidden anger over the nerve of her family to comment on her appearance and her simultaneous frustration with her weight and self-perceived unattractiveness.
But for those who want to persist in the dark cult of nationalism with all its trappings of "good wars" and strategic interests, under the cloak of which numberless horrors are committed, I did not intend to bring out the hidden anger and intolerance that has kept the U.S. on a war footing for the past sixty years.
Ten years after his first, it feels like he's on the cusp of making a second major performance breakthrough and unleashing some of that long-hidden anger onstage.
"In Japan, that sticker set represents a hidden but lingering anger that you can't really show, a passive-aggressive kind of anger.
The airline's tongue-in-cheek message, also portrayed in an advertising campaign at the time, was that it had "nothing to hide" — that its fares had none of the hidden extras that anger many passengers.
Only you can know your hidden fears or anger.
If Ferrante's narrators present themselves as rational and forthright, they reveal themselves (as all of us finally do) to be full of hidden currents, submerged angers and contradictions.
And look out for the "hidden perils" of depression, anger and self-absorption.
