The Collaborative International Dictionary
Devisable \De*vis"a*ble\, a. [From Devise.]
Capable of being devised, invented, or contrived.
Capable of being bequeathed, or given by will.
Wiktionary
a. 1 That can be devised or invented. 2 Capable of being bequeathed, or given by will.
Usage examples of "devisable".
Probably no costume devisable could surpass in ignoble ugliness the attire of an English working-class widow when she appears in the streets.
Life was a fever-dream made up of joys embittered by sorrows, pleasure poisoned by pain, a dream that was a nightmare-confusion of spasmodic and fleeting delights, ecstasies, exultations, happinesses, interspersed with long-drawn miseries, griefs, perils, horrors, disappointments, defeats, humiliations, and despairs -- the heaviest curse devisable by divine ingenuity.
Unless the government is going to require passengers, crew, and pilots to travel naked and with no luggage, there is no spot search devisable that can keep the skies safe - no matter how irritating.