dastrobolical Share definition Flag Dastrobolical: (adj) brilliantly dark, evil. ingenious, similar to diabolical but of a higher evil. The dastrobolical scientist gleamed at his finished creation. dastrobolical by tryhonesty November 8, 2006 0 0 Get merch Get the dastrobolical mug. Buy Now — $32.95 See more merch