The term twice-exceptional or 2e refers to individuals acknowledged as gifted and neurodivergent. As a literal interpretation implies, it means a student is simultaneously very strong or gifted at some task but also very weak or incapable of another task. Due to this duality of twice-exceptional people's cognitive profiles, their strengths, weaknesses, and struggles may remain unnoticed or unsupported. Because of the relative apparentness of precocious developments, such as hyperlexia, compared to subtler difficulties which can appear in day-to-day tasks, these people may frequently face seemingly contradictory situations which lead to disbelief, judgements, alienation, and other forms of epistemic injustice. Some related terms are "performance discrepancy", "cognitive discrepancy", "uneven cognitive profile", and "spikey profile". Due to simultaneous combination of abilities and inabilities, these people do not often fit into an age-appropriate or socially-appropriate role.