"Meaningful action" refers to taking purposeful and significant steps towards achieving a desired outcome or making a positive impact. It involves doing something that is meaningful, valuable, and has a real effect on a situation or goal.
Cities across the globe are stepping into the leadership vacuum left by nations, which have failed to take meaningful action on global warming for more than two decades. (scientificamerican.com)
It is my hope to find ways — both big and small — that can help us all take meaningful action on behalf of each other. (chickennuggetsofwisdom.com)
A true freshman quarterback was forced into meaningful action for the first time all season. (businessinsider.com)