internecine
C2CEFR level
80/100Rarity: very rare
FormalRegister
General adjective
Relating to conflict within a group that is mutually destructive.
Internecine feuding between rival factions did more damage to the party than any external opponent.
Business adjective
Involving destructive conflict within a group or organisation.
Internecine warfare between the two divisions paralysed the company for a year.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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