complexion

1. (figuratively) The outward appearance of something.Examples: "It was a little unfortunate that the fib unfibbed gave their consultations something the complexion of that close understanding which exists between penitent and confessor."figuratively

2. (obsolete, medicine) The combination of humours making up one's physiological "temperament", being either hot or cold, and moist or dry.Examples: "Ne ever is he wont on ought to feed / But todes and frogs, his pasture poysonous, / Which in his cold complexion doe breed / A filthy blood […]"; "“Indeed, sir,” answered the lady, with some warmth, “I cannot think there is anything easier than to cheat an old woman with a profession of love, when her complexion is amorous; and, though she is my aunt, I must say there never was a more liquorish one than her ladyship. […]"obsolete

3. (loanword, especially in scientific works translated from German) An arrangement.Examples: "1909, Ludwig Boltzmann, translated by Kim Sharp and Franz Matschinsky Second there is the level at which the energy or velocity components of each molecule are specified. He calls this a Komplexion, which we translate literally as complexion."especially