Grumpily/ˈɡrʌmpɪli/ Definition 1 of 1Pro Tip 1/3Negative Mood Use 'grumpily' to describe actions done with annoyance or irritability. She grumpily slammed the door after the argument. Pro Tip 2/3Not Always Loud 'Grumpily' can express quiet discontent, not just noisy complaints. He grumpily scrolled through his phone, ignoring everyone. Pro Tip 3/3Body Language When 'grumpily' is used, imagine a person's body language as unhappy or displeased. She grumpily packed her bag, her shoulders hunched.