INEXTRICABLE
inextricable
(adjective) not permitting extrication; incapable of being disentangled or untied; “an inextricable knot”; “inextricable unity”
Source: WordNet® 3.1
Etymology
Adjective
inextricable
(of a knot etc) Impossible to untie or disentangle.
(of a problem) Impossible to solve.
(of a maze etc) Impossible to escape from.
Source: Wiktionary
In*ex"tri*ca*ble, a. Etym: [L. inextricabilis: cf. F. inextricable.
See In- not, and Extricate.]
1. Incapable of being extricated, untied, or disentangled; hopelessly
intricate, confused, or obscure; as, an inextricable knot or
difficulty; inextricable confusion.
Lost in the wild, inextricable maze. Blackmore.
2. Inevitable. [R.] "Fate inextricable." Milton.
Source: Webster’s Unabridged Dictionary 1913 Edition