"Limited proficiency" refers to having a limited or basic level of skill or understanding in a particular area or subject. It means that someone is not highly skilled or knowledgeable in that specific field. Full definition
Performance in most cities is flat, with limited proficiency gains and large shares of schools stuck in the bottom 5 percent of schools in their state. (crpe.org)
Nearly 25 percent of all public - school teachers in the United States had students with limited proficiency in English in their classes in 1980 - 81, but only 3.2 percent of those teachers said they had the academic preparation or the language skills... (edweek.org)
Language barriers within the field are continuing to broaden, creating a spotlight on the fact that many of these employees possess limited proficiency in English (LEP). (fooddrink-magazine.com)