He had a speech impediment, which set him apart from the other children.
She thought at first that he had some kind of speech impediment.
"I was so sure a vampire would never have a speech impediment."
An accident when he was young left him with a speech impediment.
Learning to deal with his speech impediment was not easy for Bruce.
The voice was a child's, with a bit of a speech impediment.
He suffered from a speech impediment and spoke very little until about the age of six.
This is a part of a larger speech impediment he has.
One has a speech impediment while the other looks like a potato.
The child very likely will have a speech impediment, you know.
