doubter; person who suspends judgment until the evidence supporting a point of view has been examined
skeptic
500
conscientious; extremely thorough
scrupulous
500
slander
vilify
500
unnecessary; excessive; overabundant.
superfluous
500
changeable; explosive evaporation rapidly
volatile
500
combination of different parts to create a connected whole; chemical production of a more complex substance from simpler substances; electronic production of sounds