#imponderable  a factor whose effects cannot be accurately assessed: "human behavior depends on many imponderables"
  supertype:  influence.determining_factor  a cognitive factor that tends to have an effect on what you do; "her wishes had a great influence on his thinking"
  subtype:  leavening__leaven  an influence that works subtly to lighten or modify something; "his sermons benefited from a leavening of humor"

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