3 adjectives to describe stutter

He is also gifted with a slight stutter, which under the stress of a foreign language becomes chronic.

There was an ominous stutter in their motor, for one thing, and Casey knew of a stiffish hill a few miles this side of Rhyolite, so he forced himself to set a slow pace which they could easily follow.

From somewhere not more than a long rifle-shot away, a Ford was coughing under full pressure of gas and with at least one dirty spark plug to give it a spasmodic stutter.

3 adjectives to describe  stutter