I had echocardiogram results and it says akinetic ans aneurysmal basal inferior segment what does that mean? in layman terms?

This finding is seen after significant myocardial damage from coronary artery thrombosis. In your case I assume a blockage of the right coronary artery caused damage & weakening of part of the inferior surface of the left ventricle. In rare cases this can be a congenital defect. However, your physician or cardiologist, who knows all the facts in your case, can advise you best about this finding