"reasonable notion" is a grammatically correct and usable phrase in written English.
You can use it to describe a belief or idea that is rational, logical, and sensible. Example: "The concept of time travel may seem far-fetched, but upon closer examination, it is actually a reasonable notion supported by scientific theories."
Alas, that $1.9 trillion estimate was not based on anything like this reasonable notion.
It is his strategy for breaking the upper-middle-class cycle, and it's a reasonable notion.
There is mounting anger at Britain's political and economic elite following the parliamentary expenses scandal, alongside bankers' bonuses out of kilter with any reasonable notion of justified reward.
These are the sort of fees investment bankers were paying themselves in the good times and they are incompatible with any reasonable notion of free expression.
We cling to the notion of retirement at sixty-five — a reasonable notion when those over sixty-five were a tiny percentage of the population, but completely untenable as they approach twenty per cent.
In America, despite 11 increases in interest rates since June 2004, real rates are still negative and below any reasonable notion of the "neutral rate of interest" at which monetary policy is neither stimulating nor restraining the economy.
Despite seemingly reasonable notions of perceived risk of Ebola, slightly more than half of those surveyed said they planned to take some form of action to avoid contracting the illness, including either avoiding public transportation, avoiding those who have traveled to affected areas, or changing hygiene practices.
Such a deal, however, assumes that the congressional GOP is a good-faith rational actor, which would have been a reasonable enough notion as recently as the early 1990s.
"It is based on a reasonable and fundamental notion that we believe relations, or even direct talks, with the United States is against our national interests," he said.
While reasonable, this simple notion is complicated by the multistep nature of metastasis.
While there is reasonable support for notions of 'content' specificity, with anxiety being linked to a preoccupation with threat and depression being associated with loss (for a review see Beck, 2005), compelling evidence of 'process' specificity has yet to be established at the diagnostic level.
