1. Infrequent or sporadic interactions or meetings with people, typically without regular commitment or deep connection
During the pandemic, many people maintained only casual contacts with friends outside their household.
Durante a pandemia, muitas pessoas mantiveram apenas contatos ocasionais com amigos fora de suas casas.
2. Brief or incidental encounters or communications that happen by chance or without planning
We had casual contacts at conferences, but never developed a close friendship.
Tivemos contatos ocasionais em conferências, mas nunca desenvolvemos uma amizade próxima.
3. In epidemiology, brief or limited exposure to an infected person that may or may not result in transmission
The health department tracked casual contacts of the confirmed case.
O departamento de saúde rastreou os contatos ocasionais do caso confirmado.