This is the 13720th most frequent Russian word.
неравнодушных
"Неравнодушных" means "those who are not indifferent."
The word 'неравнодушных' is used here to describe people who care deeply and are engaged in social issues, implying a characteristic quality of the people involved.
Неравнодушных людей всегда привлекают важные социальные проекты.
Compassionate people are always attracted to important social projects.
Here, 'неравнодушных' is applied as an adjective to citizens, indicating those who are proactive and empathetic.
Карьера волонтёра подходит для неравнодушных граждан.
A career as a volunteer is suitable for caring citizens.
In this sentence, 'неравнодушных' refers to individuals among a group who are involved or show interest in participating actively.