"reasonably arguable" is a correct and usable phrase in written English.
One example of its usage is, "The court ruled that the plaintiff's argument was reasonably arguable and should proceed to trial."
I think it is reasonably arguable, surely, that you would have had the so-called Arab spring come to Iraq.
Pastoureau's exegesis of the play of stripes in history is imaginative, but it occasionally ventures beyond the realm of the reasonably arguable.
Lord Goldsmith reveals that his predecessors had advised that the legality of British bombing of Iraq in Operation Desert Fox in 1998 and of Kosovo the following year was "no more than reasonably arguable".
In assessing the risks of acting on the basis of a reasonably arguable case, you will wish to take account of the ways in which the matter might be brought before a court.
"It is reasonably arguable, and we cannot determine from this record, whether Harris received competent psychiatric assistance," Judge Noonan told a courtroom crowded with representatives from the State Attorney General's office and the American Civil Liberties Union.
However, it must be recognised that on previous occasions when military action was taken on the basis of a reasonably arguable case, the degree of public and Parliamentary scrutiny of the legal issue was nothing like as great as it is today.
"Pretty," of course, is arguable.
Managing the coexisting policy mandates (and tension), and keeping everyone (reasonably) happy will be a major policy and practical challenge in the coming years, but it is arguable that the dual pressures creates a balance that, in the aggregate, could be good for both science and society.
Both questions are arguable.
However, its origin remains arguable.
