Shadow

Can shadowing fix my accent as an adult?

Short answer

It can change it, and usually a lot — though “fix” is the wrong word, because the goal most people actually want is to be easily understood rather than to sound born somewhere. Adults keep the physical ability to produce new sounds and rhythms; what changes with age is how much deliberate practice it takes. Shadowing is that practice. The evidence is strongest for exactly what listeners notice — how understandable you are and how strong your accent sounds — and weaker for fixing one stubborn individual sound.

What changes first, and what changes last

Rhythm and stress move early, sometimes within weeks: where you lean, where you speed up, where you stop. Individual sounds move last, and some never fully move. The good news is that listeners place an accent mostly on the first group, which is also the group shadowing is best at.

What the research says, including its limits

According to Whitworth, B. & Rose, H. (2025). A Systematic Review of Research on the use of Shadowing for Second Language Pronunciation Teaching. Research Synthesis in Applied Linguistics, 1(2). — a systematic review of 44 studies found that shadowing training can improve learners’ comprehensibility, intelligibility and accentedness, along with suprasegmental control such as fluency and prosody. The same review found the evidence on individual sounds (segmental control) inconclusive. We quote the limitation deliberately: anyone promising to erase an adult accent entirely is selling something.

A realistic goal

Being understood the first time, every time, without anyone asking you to repeat yourself. That is reachable. Sounding indistinguishable from a native is not the standard any of this should be measured against.

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Frequently asked

Is there an age after which it stops working?

No age has been shown to close the door. What changes is the amount of deliberate practice needed, not whether it is possible.

Will I lose my accent completely?

Probably not, and for most people that was never the aim. An accent that does not get in the way is the useful outcome.

Source

Whitworth, B. & Rose, H. (2025). A Systematic Review of Research on the use of Shadowing for Second Language Pronunciation Teaching. Research Synthesis in Applied Linguistics, 1(2). DOI · open-access copy

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