LIMITED VOCABULARY: THE PRIMARY OBSTACLE TO SUCCEEDING IN IELTS.

Many IELTS candidates cannot reach their target scores. One major reason is a lack of 
vocabulary. Vocabulary is essential for understanding and communication. It supports all 
four skills: reading, writing, listening, and speaking. Without enough vocabulary, learners 
struggle to perform well in the exam. This study examines how limited vocabulary becomes a 
key barrier to IELTS success. It focuses on common problems faced by learners. These 
include difficulty understanding reading texts, weak idea development in writing, and 
problems with listening and speaking. The study is based on a review of relevant literature 
and general learner patterns. The findings show that poor vocabulary knowledge lowers 
overall performance. Many students fail to reach band 6 or higher because of this issue. 
Vocabulary also affects confidence and fluency. The study suggests that improving 
vocabulary can increase IELTS scores. Targeted vocabulary learning helps students 
understand better and express ideas more clearly. 
Key words:  IELTS, Vocabulary Knowledge, Language Barriers, Reading, Writing, 
Listening, Speaking, English Proficiency.