Imprecation
/ˌɪmprɪˈkeɪʃn/
Definition 1 of 1
Pro Tip 1/3Literary Usage
Imprecation is common in literary contexts, particularly in fiction and poetry, to depict strong emotions. 
The witch's imprecation in the novel chilled readers to the bone.
Pro Tip 2/3Strong Displeasure
Use 'imprecation' to express a strong wish for someone to experience harm; it's more intense than a mild insult. 
His imprecation against the unfair ruler was filled with venom.
Pro Tip 3/3Not for Casual Talk
Imprecation is a heavy, serious word and not used in casual conversation or light-hearted situations. 
She hurled an imprecation, which was shockingly out of place at the cheerful gathering.