v. to speak low and in a way that is not easy to understand; mutter; to say in a low voice that is not clear;
He was upset and mumbling to himself.
mutter; grumble; murmur; ramble
speak clearly; articulate
2 syllables
mum-bling
VocabClass lessons are designed to engage students, improve motivation in learning the subject matter, and generate better results. Long-term retention is our focus and by making the learning process fun, our gamified approach has a positive impact on this goal.
View all games!