Founderous

• (a.) Difficult to travel; likely to trip one up; as, a founderous road.
Found on http://thinkexist.com/dictionary/meaning/founderous/

Founderous

Foun'der·ous adjective Difficult to travel; likely to trip one up; as, a founderous road. [ R.] Burke.
Found on http://www.encyclo.co.uk/webster/F/68

Founderous

Causing travellers to founder or get stuck in the mud
Found on http://www.digitalstroud.co.uk/glossary.php?glossgroup=W-Z
No exact match found