an untieable knot
Source: wiktionary
Untieable
Synonyms for "untieable"
Ranked by relevance and common usage.
Sample sentences
2 total sentences available.
And the parson, true to the shepherding instincts, soon began to extend his vigilance to every member of his domestic fold. It seemed to Ursie that his mission was to either catch her bootlaces untied or a not untiable knot in them.
Source: wiktionary