Antonyms of adj uncomplicated

2 senses of uncomplicated

Sense 1
uncomplicated, unsophisticated -- (lacking complexity; "small and uncomplicated cars for those really interested in motoring"; "an unsophisticated machine")

INDIRECT (VIA simple) -> complex -- (complicated in structure; consisting of interconnected parts; "a complex set of variations based on a simple folk melody"; "a complex mass of diverse laws and customs")

Sense 2
elementary, simple, uncomplicated, unproblematic -- (easy and not involved or complicated; "an elementary problem in statistics"; "elementary, my dear Watson"; "a simple game"; "found an uncomplicated solution to the problem")

INDIRECT (VIA easy) -> difficult, hard -- (not easy; requiring great physical or mental effort to accomplish or comprehend or endure; "a difficult task"; "nesting places on the cliffs are difficult of access"; "difficult times"; "why is it so hard for you to keep a secret?")

Similarity of adj uncomplicated

2 senses of uncomplicated

Sense 1
uncomplicated, unsophisticated -- (lacking complexity; "small and uncomplicated cars for those really interested in motoring"; "an unsophisticated machine")
       => simple (vs. complex) -- (having few parts; not complex or complicated or involved; "a simple problem"; "simple mechanisms"; "a simple design"; "a simple substance")

Sense 2
elementary, simple, uncomplicated, unproblematic -- (easy and not involved or complicated; "an elementary problem in statistics"; "elementary, my dear Watson"; "a simple game"; "found an uncomplicated solution to the problem")
       => easy (vs. difficult) -- (posing no difficulty; requiring little effort; "an easy job"; "an easy problem"; "an easy victory"; "the house is easy to heat"; "satisfied with easy answers"; "took the easy way out of his dilemma")