diabolically difficult

  • 11Methastyridone — Systematic (IUPAC) name 2,2 dimethyl 5 (2 phenylethyl) 4 oxazolidinone Clinical data Pregnancy cat.  ? Legal status …

    Wikipedia

  • 12fiendish — fiend•ish [[t]ˈfin dɪʃ[/t]] adj. diabolically cruel, wicked, or difficult • Etymology: 1520–30 fiend′ish•ly, adv. fiend′ish•ness, n …

    From formal English to slang

  • 13diabolic — /daɪəˈbɒlɪk / (say duyuh bolik) adjective 1. having the qualities of a devil; fiendish; outrageously wicked: a diabolic plot. 2. relating to or actuated by the devil or a devil: *Behind him the old woman whistled screeches in a diabolic effort to …