Dastardly
Foul, iniquitous
Conflagration
Inferno, blaze
Tantamount
Equivalent, identical
Dissuaded
Prevented, discouraged
Preparatory
Elementary, prior
Corroborated
Confirmed, clarified
Insinuation
Inference, imputation
Astounding
Stupefying, amazing
Feasibility
Viability, practicality
Menacing
Dangerous, threatening
Acrimonious
Baleful, poisonous
Interpolated
Incorporated, introduced
Maligned
Abused, defamed
Verbosity
Convolution, babbling
Colloquial
Informal, conversational