Definition of addle in US English:

addle

verb

[with object]humorous
  • Make unable to think clearly; confuse.

    ‘being in love must have addled your brain’
    • ‘Has that second bottle of Beaujolais addled his brain, inducing some kind of hallucinatory fever?’
    • ‘The drugs have addled him so much that it takes pot, alcohol, ecstasy, Special K and GHB to give him that special happy feeling now when he goes out.’
    • ‘Was it conceivable that the drugs he had been given for pain had permanently addled his brain?’
    • ‘This was all very strange to Helano; it was confusing and addling her brain.’
    • ‘Even though my brain is addled with cough syrup and Advil, the fabulous feeling of freedom is not lost on me.’
    • ‘The fact that she was even considering the idea showed that he'd quite addled her brain, she thought.’
    • ‘It must have really addled his brain for him not to understand something this basic and this obvious.’
    • ‘We're addled by Arizona's talent, impressed by the Wildcats' intensity, and downright dipsy-doodled by their depth.’
    • ‘‘Your friend,’ stated Jeff and went to his own room, no doubt to immerse himself in all his stupid computer games that I was sure was addling his brain.’
    • ‘He knew the drugs Paul had given him would addle his brain, but surely not to the extent he couldn't follow a conversation with his little brother.’
    • ‘Try as I may, though, it's been a dull day, with my brain partly addled by pain-killers.’
    • ‘The Bethany Bash is to be held this Friday and Saturday and aptly called ‘Double Bheja Fry’ because it promises to addle your brains with fun and frolic.’
    • ‘He felt silly that he'd allowed her muddled ravings to addle him in the first place.’
    • ‘That swim you took must have addled your brains more than I thought.’
    • ‘This damned heat has addled many people's wits, mine included: made us sluggish, unquestioning, apathetic.’
    • ‘I think the alcohol from last night has addled your brain, because you couldn't be more far off.’
    • ‘I vaguely remember a similarly soaked occasion when I was a child, where I tried to shake like a dog and my mother said it addled the brain.’
    muddled, confused, fuddled, befuddled, bewildered, dazed, dizzy, disoriented, disorientated, stupefied, unbalanced, unhinged, demented, deranged
    View synonyms

adjective

archaic
  • (of an egg) rotten.

Origin

Middle English (in addle (sense 2 of the adjective)): from Old English adela ‘liquid filth’, of Germanic origin; related to Dutch aal and German Adel ‘mire, puddle’.

Pronunciation

addle

/ˈadl//ˈædl/