Antonyms of verb simplify

1 sense of simplify

Sense 1
simplify -- (make simpler or easier or reduce in complexity or extent; "We had to simplify the instructions"; "this move will simplify our lives")
       Antonym of complicate (Sense 1)
      => complicate, perplex -- (make more complicated; "There was a new development that complicated the matter")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb simplify

1 sense of simplify

Sense 1
simplify -- (make simpler or easier or reduce in complexity or extent; "We had to simplify the instructions"; "this move will simplify our lives")
       => change, alter, modify -- (cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue")

Antonyms of adj simplified

1 sense of simplified

Sense 1
simplified -- (made easy or uncomplicated)

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 simplified

1 sense of simplified

Sense 1
simplified -- (made easy or uncomplicated)
       => 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")