As nouns the difference between bumbler and jumbler
is that bumbler is someone who bumbles; a stumbler or blunderer while jumbler is one who jumbles, muddles, or confuses.
bumbler
English
Noun
(
en noun)
Someone who bumbles; a stumbler or blunderer.
jumbler
English
Noun
(
en noun)
One who jumbles, muddles, or confuses.
* 1864 , Transactions of the Vermont Medical Society (page 329)
- They are jumblers , who never succeed in effecting obvious relations between their conclusions and their premises.