i Register
In some senses, bumble is marked as obsolete, UK. Watch for register when choosing this word.
noun
A confusion; a jumble.
verb
To act or move in an awkward or confused manner (often clumsily, incompetently, or carelessly).
Spiders build webs and wait for insects to bumble into them.
To carry out (a task) clumsily, incompetently, or with many careless mistakes; to bungle, to botch.
verb
To boom, as a Eurasian bittern.
To buzz or bum.
To speak in a rambling, incoherent, or indistinct manner, especially at tedious length.
To grumble at; to blame.