hyperaggressive

adjective

hy·​per·​ag·​gres·​sive ˌhī-pər-ə-ˈgre-siv 

variants or hyper-aggressive

: extremely or excessively aggressive

a hyperaggressive sales agent

… the high-status prizes now go only to those willing to be hyperaggressive about doing what's necessary to achieve results.

—Kenneth Labich

hyperaggressively adverb

or hyper-aggressively

Genetically altered mice are scampering all over the place, losing weight, acting hyperaggressively.

—Linton Weeks

hyperaggressiveness noun

or hyper-aggressiveness

… the spotted hyena, famed for the hyperaggressiveness of the female member of the species.

—Natalie Angier

Word History

First Known Use

1940, in the meaning defined above

Medical Definition

hyperaggressive

adjective

hy·​per·​ag·​gres·​sive ˌhī-pə-rə-ˈgres-əv 

: extremely or excessively aggressive

hyperaggressive patients