knotty
From LSJ
οὐ παντός πλεῖν ἐς Κόρινθον → it's not for every man to make a journey to Corinth, not everyone can afford a trip to Corinth
adj.
Intricate: P. and V. ποικίλος, ἄπορος, ἀμήχανος (rare P.), ἀσαφής, V. δύσκριτος, ἄσκοπος, δυστέκμαρτος, δυσμαθής; see intricate.