Reverse Dictionary: COMPLEX

ADJECTIVES
NONTRIVIAL extremely complex → 1997 US sl.
SINUOUS complex, intricate; roundabout → 1853

NOUNS
CAMAC anything that is over-complex or over-expensive to achieve its essentially simple purpose → 19C Irish sl.
CANFUL OF ANGLE-WORMS a complex, confused, and distasteful state of affairs; a complicated enigma → 1927-28 US
CAN OF WORMS a complex, confused, and distasteful state of affairs; a complicated enigma → 1927-28 US
FUSS AND PALAVER an annoying or troublesome complexity → 1892
HIGH FENCE something difficult or complex → 1967 Amer. dial.
SINUOSITY a complexity or intricacy → 1827
SUBTLETY complexity, abstruseness, intricacy → a1300 obs.

PHRASES
► WRAPPED AROUND THE AXLE tangled in complex and trivial matters; involved in a pointless discussion → 1980 US army usage