"rarely noted" is correct and usable in written English.
It is an adverb that means "occurring very rarely or infrequently". Example sentence: His admirable qualities are rarely noted by his colleagues.
This difference is rarely noted.
(The Ghostbusters are total hotties, although this is rarely noted.
In 1983, it is rarely noted, the Conservative vote went down, by nearly 700,000.
Pope's funding of the Locke Foundation is rarely noted, in print or on the air.
But what is rarely noted is the sheer fatigue that Cannes, more than any other festival, engenders.
Social conservatives have also been flexing their political muscles in ways rarely noted by local or international media.
That's down to two main reasons, one heavily discussed, the other rarely noted, but both with their roots in the early days of Google.
The majority of public safety officers are not trained in the specifics of car seat installation, so when they arrive at an accident, mistakes are rarely noted.
Set in contemporary Kabul, the production startled him with its revelation of the play's rarely noted emphasis on exile and separation.
And in their questions and statements, they rarely noted that the Legislature itself had done little in recent years to examine the homes.
