1. In physics, an interaction mediated by W and Z bosons responsible for radioactive decay and certain particle interactions
The weak action is one of the four fundamental forces in nature.
A ação fraca é uma das quatro forças fundamentais da natureza.
2. An ineffective or feeble measure or response to a situation
The government's weak action on climate change disappointed environmental groups.
A ação fraca do governo sobre a mudança climática decepcionou os grupos ambientalistas.