Someone or something that introduces complexity (into an issue or situation)

Pertaining to the complexion, or to the care of it.

constitutionally

superlative form of complex: most complex

plural of complexus

(chemistry) A substance that aids in forming coordination complexes, especially a potent chelating ligand such as EDTA, EGTA, or iminodiacetic acid.

plural of complexone

plural of complexin

(physics) A nonsingular periodic soliton

colourless; pale