1. in a manner that is green in color or appearance
2. in a way that is environmentally responsible or sustainable
Usage: modern usage
3. in a naive, inexperienced, or unsophisticated manner
Usage: archaic or literary

Examples

• The forest stretched greenly across the valley.
• The company operates greenly by using renewable energy sources.
• She spoke greenly about matters she did not fully understand.
• The hills rolled greenly in the spring sunshine.
• They committed to building greenly and reducing their carbon footprint.
• He answered greenly, revealing his lack of experience.