Rooseveltian is a 12 letter English word.
You can make 2097 anagrams from letters in Rooseveltian (aeeilnoorstv).
An Americanism dating back to 1905-10; Roosevelt + -ian
And it looks like we might just have a Rooseveltian visionary—pragmatic, bold—headed to Pennsylvania Avenue.
In public he never seems to have asserted himself in the Rooseveltian manner.
It took more than an under-slung jaw and a rugged Rooseveltian determination to refuse this great honor.
So he told himself fiercely; whereupon, in the Rooseveltian phrase, he cast his hat into the ring.