From inter- +‎ individual.

interindividual (not comparable)

1. Occurring between individuals.

• interpersonal

• intergroup

Borrowed from French interindividuel.

interindividual m or n (feminine singular interindividuală, masculine plural interindividuali, feminine/neuter plural interindividuale)

1. interindividual

• IPA^(key): /inteɾindibiˈdwal/ [ĩn̪.t̪e.ɾĩn̪.d̪i.β̞iˈð̞wal]
• Rhymes: -al
• Syllabification: in‧te‧rin‧di‧vi‧dual

interindividual m or f (masculine and feminine plural interindividuales)

1. interindividual

• “interindividual”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025