With the rapid development of technology, multimedia comes into English classes and positively improves learners’ language proficiency. The present study attempted to consider the use of animated infographics on the vocabulary gain and retention of Iranian intermediate EFL students. The classes were held online through the Jitsi meet website in the autumn of 2021. To this end, 60 EFL students were selected among 90 students through a homogeneity test. At the beginning of the treatment period, a pretest was administered to both groups, and then, the participants attended 13 sessions. In these sessions, the animated group (AG) was taught through animated infographics, while the control group (CG) was instructed conventionally. The posttest and delayed posttests were administered to test the student’s vocabulary gain and retention. The findings indicated that the AG outperformed the CG significantly in the posttest and delayed posttest. Therefore, the animated infographics proved to be more effective in learning English vocabulary for these students. The results could have implications for teachers because it heightens their understanding of using technologies in general and animated infographics in particular and leads to more effective teaching methodologies.
