Main entry: complex
Definition: complicated in structure; consisting of interconnected parts
Usage: a complex set of variations based on a simple folk melody; a complex mass of diverse laws and customs
Antonyms: simple
Definition: having few parts; not complex or complicated or involved
Antonyms: unsubdivided, simple
Definition: (botany) of leaf shapes; of leaves having no divisions or subdivisions
Antonyms: uninvolved
Definition: not involved
Antonyms: untangled
Definition: not tangled