stumbler

Plural: stumblers

Noun

One who frequently misses their step or makes errors.
a walker or runner who trips and almost falls
someone who makes mistakes because of incompetence
One who stumbles.

Examples

Despite being a stumbler in real life, he was a Scrabble pro.

Origin / Etymology

From stumble + -er.

Synonyms

blunderer, botcher, bumbler, bungler, butcher, fuckup, fumbler, sad sack, tripper

Scrabble Score: 12

stumbler: valid Scrabble (US) TWL Word
stumbler: valid Scrabble Word in Merriam-Webster MW Dictionary
stumbler: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 16

stumbler: valid Words With Friends Word