abstruse
adjective
[ əbˈstruːs ]
• difficult to understand; obscure.
• "an abstruse philosophical inquiry"
Similar:
obscure,
arcane,
esoteric,
little known,
recherché,
rarefied,
recondite,
difficult,
hard,
puzzling,
perplexing,
enigmatic,
inscrutable,
cryptic,
Delphic,
complex,
complicated,
involved,
over/above one's head,
incomprehensible,
unfathomable,
impenetrable,
mysterious,
involute,
involuted,
Origin:
late 16th century: from Latin abstrusus ‘put away, hidden’, from abstrudere ‘conceal’, from ab- ‘from’ + trudere ‘to push’.
