Diabolical
Definition 1 of 2
Pro Tip 1/3
Extreme Negativity
Use 'diabolical' to express that something is shockingly bad or unacceptable. The food was diabolical; I could barely swallow it.
Pro Tip 2/3
Intensity Enhancer
'Diabolical' can intensify the severity of a situation or an action. He faced a diabolical dilemma that left him with no good choices.
Pro Tip 3/3
Strong Disapproval
Express strong disapproval or frustration with a situation by calling it 'diabolical'. Their customer service is diabolical, and I won't shop there again.