abstruse
- adjective (adj)
Meaning: difficult to understand
Synonyms:
abstract
clear as dishwater
complex
complicated
deep
enigmatic
esoteric
greek to me
heavy
hidden
incomprehensible
intricate
involved
muddy
obscure
perplexing
profound
puzzling
recondite
subtle
unfathomable
vague
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.