"strong metaphor" is an acceptable phrase in written English.
You may use it to describe a metaphor or analogy that is especially vivid or effective. For example, "The author's comparison of the worn-out tire to a discouraged soldier was a strong metaphor that made a powerful statement about the effects of war."
Thucydides equates the inhabitants' loss of freedom with "enslavement"—a strong metaphor.
The image presents a strong metaphor for the gender-prescribed constraints from which Bathsheba seeks to escape.
This can be a strong metaphor for the sense of dislocation that technology can cause in contemporary life.
Mr. Sikkema has learned that a strong metaphor can be as expedient as meeting the bottom line.
But prison is a strong metaphor for the constraints of tyranny and exclusion, and here it carries a further echo.
But in "Chimes of Freedom," strong metaphors replace similes; sight and sound uncannily merge in the flashing chimes; and a simple story of a couple crouching in a doorway turns into a hail-ripped carillon — and a song of tender empathy as well, far outside the old politics of left and right, black and white.
Use strong metaphors and remind us of what America is all about.
At least among European elites, the death penalty has become an even stronger metaphor for America since the nation is led by a man who presided over 40 executions in 2000 alone and the government was preparing, until Friday, to carry out on May 16 its first federal execution in 38 years.
Lacking a strong enough metaphor for her final pitch, because all she had was the notion of walking, she piles on three un-illuminating catchphrases.
While war may be too strong a metaphor, and the young aren't really about to vanish, there is little doubt that the advertising industry is generally well behind the curve of America's changing demographic landscape.
