Dubitable in a sentence as an adjective

So if something of that rate can be noncooperatively recovered, the claim in your comment about cooperative recovery is dubitable.

Dubitable definitions

adjective

open to doubt or suspicion; "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney

See also: doubtful dubious