1. in a manner characterized by growling; with a deep, guttural sound
2. in a manner expressing anger, discontent, or irritation through growling sounds or tone

Examples

• The dog barked growlingly at the stranger approaching the gate.
• He spoke growlingly about the delays in the project.
• She responded growlingly when asked to repeat herself.
• The engine rumbled growlingly as the truck climbed the steep hill.
• He growlingly complained about the cold weather.
• The bear emerged from its den growlingly, disturbed by the noise.