entrenched

/ɛnˈtɹɛntʃt/

firmly established and difficult to change

entrenched in a sentence

“Entrenched interests blocked every reform attempt.”

French: en- (in) + tranche (slice, trench)

Related Words

immutable

unchanging over time; unable to be changed

mutable

liable to change; inconstant

protean

tending to change frequently or easily; versatile

ossify

to turn into bone; to cease developing

calcify

to harden; to become rigid

stagnate

to cease to flow or move; become inactive