im·per·mis·si·ble 
(ĭm′pər-mĭsə-bəl)
(ĭm′pər-mĭsə-bəl)adj.
Not permitted; not permissible: impermissible behavior.
im′per·mis′si·bili·ty n.
im′per·missi·bly adv.
- Frederick William
- Frederick William I
- Frederick William II
- Frederick William III
- Frederick William IV
- Frederick Winslow
- (Frederic) Ogden
- Fredericton
- Frederic William
- F(rederik) W(illem)
- free
- free agency
- free agent
- free-air correction
- free alongside ship
- free-associate
- free association
- freebase
- free-base
- freebaser
- freebee
- freebie
- freeboard
- freeboot
- freebooter