Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun stumbler
2 senses of stumbler
Sense 1
stumbler, tripper -- (a walker or runner who trips and almost falls)
=> pedestrian, walker, footer -- (a person who travels by foot)
Sense 2
bungler, blunderer, fumbler, bumbler, stumbler, sad sack, botcher, butcher, fuckup -- (someone who makes mistakes because of incompetence)
=> incompetent, incompetent person -- (someone who is not competent to take effective action)