The phrase "entrenched hostility" is a correct and usable part of a sentence in written English.
It is often used to describe a deep-seated and long-lasting animosity or anger between individuals or groups. Example: The peace talks failed due to the entrenched hostility between the two countries, making it difficult to find common ground for negotiations.
The surveillance files that the F.B.I. kept on King himself are extensive, and they betray an entrenched hostility toward both the man and the aspirations he represented.
He also doubted whether it would change such deeply entrenched hostility that few students see black professionals like himself as role models.
Many of them are lifelong champions of the EU, embattled defenders of common sense (as they see it) against the foghorn of the Eurosceptic press and the Tory party's entrenched hostility to the EU.
But progressives have also faltered here, notably in their entrenched hostility to female emancipation (women were long viewed by republicans as reactionary agents of Catholicism, and were only granted the vote in 1944).
Ethical review boards cannot be a 'one size fits all' but must take into account local concerns and address those concerns in liaison with local representatives and further in-roads must be made into the entrenched hostility on the part of drug companies to post-trial medical care.
Band members have gone through rehab and group therapy, making the process public in the 2004 film "Metallica: Some Kind of Monster," which showed the band working through entrenched hostilities to record an album.
As tempting as it may be to dismiss November discord as a post-election flash of anger that's sure to fizzle, doing so would risk the onset of entrenched hostilities in your workplace.
But there's no doubt that some of Korea's policies reflect a well-entrenched hostility toward imports.
That absence has contributed to widespread ignorance in India about contemporary Pakistan, a country set apart by such entrenched political hostility that few Indians have visited it.
Both parents were possessive though in rather different ways; looking back on her adolescence, Angela thought of herself spending a large part of it entrenched in hostility towards them.
The hosts were the Suffolk County executive, Steve Levy, a dogged champion of the housing cause, and his deputy Jim Morgo, who in an earlier life as a housing advocate spent years chipping away at the granite cliffs of Nimbyism — the entrenched local hostility to "affordable housing" of any shape and size, and one of the main reasons for the fix this region is in.
