complex 10 antonyms and opposites of complex. Adj — Made up of many interconnected parts; not simple. Synonyms for complex complexed complicate complicated convoluted Gordian involute intricate involutional knotty involved labyrinthal labyrinthine manifold Antonyms for complex incomplex noncomplex noncomplicated simple simplex straightforward uncomplexed uncomplex uncomplicated unconvoluted ← Back to the full definition of complex
