1. Having or showing a calm, sluggish, or stolid temperament 2. resembling, consisting of, or producing the humor phlegm; phlegmy (not to be confused with Flemish)
With yesterday’s word being sanguine, I thought I’d continue the good humor words. Webster.com notes that phlegm was the humor “in early physiology that was considered to be cold and moist and to cause sluggishness.” There you have it, folks.