'metaphorical force' is correct and usable in written English.
It is used to describe the power of a metaphor to express ideas or feelings in a vivid and memorable way. For example: The metaphorical force of the phrase 'the pen is mightier than the sword' has been an inspiration to writers for centuries.
The weather eventually breaks with metaphorical force.
But the dish has a poetic and metaphorical force that extends well beyond the curry house.
As environmental destruction mirrors political corruption and social breakdown, Rufus and Zaq's journey takes on a metaphorical force.
The metaphorical force of her obscured vistas becomes clear as Akerman's life imitates her art: she sleeps through a suicide bombing committed at a beachfront café a short walk from her flat.
Puppets are wheeled on to play the nightmare childhood, but they simply muddy the scene: are they little dummies or do they have a metaphorical force, suggesting that no one at court is a free agent?
The metaphorical force of the story and the indifferent contempt of the African who announces "Mistah Kurtz – He dead" (brilliantly expropriated by TS Eliot) gives Heart of Darkness the most modern air of all the books that make up the movement called Modernism.
It would have been enough for his pleasing tenor voice to contend with the metaphorical forces of evil; tonight, the struggle was a bit too real.
But listen closely, and under the sound of all that rain, you can make out something very interesting: the metaphorical forces politicians usually call "tectonic plates", shifting in ways that, three or four years ago, no one would have predicted.
Indian men live wild-horse lives, running beautiful and dangerous, until some outside force — some metaphorical cowboy — breaks them.
And yet, in the course of the first act dialogue, the camera turns slowly from the chorus and pans over the surrounding, rather ordinary countryside, until it settles on a view of a distant mountain capped by clouds, an image that functions both as a foreshadowing of Moses' journey and a metaphorical representation of divine force.
Commissioned by The Creators Project in 2012, FIELD's Energy Flow is a generative film that links together 4-10 different story lines, each segment a metaphorical expression of the invisible forces and energies that shape our world.
