rock-ribbed

[ rok-ribd ]

/ ˈrɒkˌrɪbd /

having ribs or ridges of rock: the rock-ribbed coast of Maine.

unyielding; confirmed and uncompromising: a rock-ribbed conservative.

Origin of rock-ribbed

First recorded in 1770–80

After all, Kansas is as rock-ribbed a Republican state as they come.

Kansas Republicans Pat Roberts and Sam Brownback Lifted by Rising Tide |Ben Jacobs |November 5, 2014 |DAILY BEAST
I am shocked at how many New Yorkers I had thought to be rock-ribbed Democrats are attending Romney fundraisers.

The Benefits of Business Experience |Megan McArdle |October 1, 2012 |DAILY BEAST
The argument that it is unnatural for woman to vote is as old as the rock-ribbed and ancient hills.

The History of Woman Suffrage, Volume IV |Various
The road-bed is literally 'rock-ribbed,' if not 'eternal as the sun.'

Scenic Mount Lowe and Its Wonderful Railway |George Wharton James

The cave was a natural grotto, rock-ribbed, and as firm as the everlasting foundations of the mountains themselves.

The Boy Scouts in the Blue Ridge |Herbert Carter
This produced the rock-ribbed foundations of the earth and solidified it into a vast magnet of marvelous force and power.

The Universe a Vast Electric Organism |George Woodward Warder
Old Ironsides could have been called Stone Mountain as appropriately as its neighbor, for truly it was rock-ribbed.

The Young Wireless Operator--As a Fire Patrol |Lewis E. Theiss