A bumbling mechanic.    From Wordnet, Princeton University. 

Adjective : a bumbling mechanic. ,bumbling diplomacy.    From Dictionary.com. 

Noun : The bumbling of their officers cost them the battle.    From Dictionary.com. 

Verb (used without object) : He somehow bumbled through two years of college.    From Dictionary.com. 

But it falls flat in the futuristic fridge, and she calls a bumbling Quantum Mechanic.    From Wordnik.com.  [The Berkeley Daily Planet, The East Bay's Independent Newspaper] Reference

David has been called bumbling, incompetent, nasty.    From Wordnik.com.  [The Latest on Air America] Reference

The National Intelligence Agency, which could be described as a bumbling brutal fool, should be shut down, according to Kobus.    From Wordnik.com.  [ANC Daily News Briefing] Reference

You go from "bumbling" straight to a suicide attempt?.    From Wordnik.com.  [Synopsis: Hatchet by Gary Paulsen] Reference

Still, you've got something there; a kind of bumbling halfwit hero.    From Wordnik.com.  [Monster Johnson Pig in Space] Reference

But he came across, and he had many occasions in the White House where he was kind of bumbling, and he did things.    From Wordnik.com.  [CNN Transcript Dec 27, 2006] Reference

It always entails some kind of bumbling explanation.    From Wordnik.com.  [The Citizen] Reference

This kind of bumbling looks more like the Clintons, circa early 1993.    From Wordnik.com.  [Monicamemo.com] Reference

I don't recall these kind of bumbling releases from the USSR back in the 80s.    From Wordnik.com.  [Imagethief] Reference

Robbins doesn't offer much more, "bumbling" being his number one characteristic.    From Wordnik.com.  [Filmcritic.com Movie Reviews] Reference

Certainly, the autobiography is full of a kind of bumbling, "little old me?" modesty.    From Wordnik.com.  [Books news, reviews and author interviews | guardian.co.uk] Reference

As in Homer Simpson, the bumbling cartoon character.    From Wordnik.com.  [Buzzwords] Reference

In the past, CNN was plagued by a bumbling media image.    From Wordnik.com.  [IN JACKO'S WAKE] Reference

So who is Ahmed Ressam: hardened guerrilla or bumbling dupe?.    From Wordnik.com.  [Tale Of The Wayward Son] Reference

She finds the truth all right, but only by bumbling her way to it.    From Wordnik.com.  [Trouble In Mind?] Reference

European media recorded Bush's linguistic bumbling with malicious glee.    From Wordnik.com.  [Bush's Foreign Affair] Reference

They don't know that you're a hero in your own mind — or a bumbling fool.    From Wordnik.com.  [Our Own Worst Critic] Reference

The university's defense is that it wasn't being duplicitous, just bumbling.    From Wordnik.com.  [The Fall Of Western Civ] Reference

And African nations themselves have caused problems with regulatory bumbling.    From Wordnik.com.  [What Green Revolution?] Reference

And the independent counsel has become a bumbling Mr. Magoo in a Godzilla mask.    From Wordnik.com.  [The Betrayal] Reference

After decades of bumbling apparatchiks, a high-tech Big Brother must be progress.    From Wordnik.com.  [BYE-BYE, BUSYBODY] Reference

They appeared more like bumbling holy-warrior wanna-bes than professional terrorists.    From Wordnik.com.  [Periscope] Reference

Clinton may have been saved from exposure partly by the bumbling zeal of his opponents.    From Wordnik.com.  [The Secret War] Reference

Or perhaps the aliens stay quiet out of fear of-or pity for-belligerent, bumbling earthlings.    From Wordnik.com.  [ET, PHONE US] Reference

After decades of putting up with bumbling apparatchiks, a high-tech Big Brother must seem like progress.    From Wordnik.com.  [THE COMMISSAR'S NOT IN TOWN] Reference

Clinton was portrayed in many press accounts as a raffish but engaging survivor, Gore as a bumbling pedant.    From Wordnik.com.  [Caught In Clinton's Shadow] Reference

Still, it's weirdly fascinating to hear the author's gravelly, bumbling, stilted intonation of CIA skulduggery.    From Wordnik.com.  [The New Oral Tradition] Reference

He answers direct questions frankly, creating an aura of accessibility that the bumbling Tung could never master.    From Wordnik.com.  [Taiwan: The Last Tycoon?] Reference

As a partial result of those abuses, today we trust it less when it is, by all evidence, more benign and bumbling.    From Wordnik.com.  [The Age Of Conspiracism] Reference

Over the past few months, I've tried to have fun pointing out the historical bumbling of public figures great and small.    From Wordnik.com.  [Glenn Beck and Our 'Stolen' History] Reference

These are people expert at boarding-school blasé, at hiding a seething need to win behind a veil of bumbling nonchalance.    From Wordnik.com.  [The Win-at-All-Costs President] Reference

And it establishes Brown'slikable unique selling point: themix of hip and aggressive form with bumbling, bathetic content.    From Wordnik.com.  [Doc Brown] Reference

How the Clinton White House kept the confidential FBI files of more than 400 people began as a tale of bureaucratic bumbling.    From Wordnik.com.  [Hillary's Other Side] Reference