a term referring to a counterpart or opposing entity

एक समानांतर या विपरीत प्राणी

English Usage: "The oppanal of the theory was critically accepted by the experts."

Hindi Usage: "सिद्धांत का विपक्षी विशेषज्ञों द्वारा आलोचनात्मक रूप से स्वीकार किया गया।"