1. present participle of stumble; tripping or losing one’s balance while walking
2. making mistakes or having difficulty with something

1. causing someone to trip or make mistakes

1. the act of tripping or losing balance

Examples

• She was stumbling over the uneven sidewalk.
• The student kept stumbling over the difficult pronunciation.
• His stumbling speech revealed his nervousness.
• The stumbling block prevented progress on the project.
• After stumbling through the presentation, he felt embarrassed.
• The hiker’s stumbling in the dark led to a twisted ankle.
• The politician was stumbling over questions from reporters.