1 complex /kɑmˈplɛks/ Brit /ˈkɒmˌplɛks/ adjective
1 complex
/kɑmˈplɛks/ Brit /ˈkɒmˌplɛks/
Learner's definition of COMPLEX
[more complex; most complex] : having parts that connect or go together in complicated ways
[more complex; most complex] : not easy to understand or explain : not simple
grammar : consisting of a main clause and one or more additional clauses

— complexly

2 complex /ˈkɑːmˌplɛks/ noun
plural complexes
2 complex
plural complexes
Learner's definition of COMPLEX
: a group of buildings, apartments, etc., that are located near each other and used for a particular purpose
: an emotional problem that causes someone to think or worry too much about something see also inferiority complex, oedipus complex
: a group of things that are connected in complicated ways