IPA: //haɪpərˈræʃənl//
KK: /haɪpərˈræʃənl/
Describing someone or something that is extremely logical and based on reason, often to an excessive degree.
His hyperrational approach to problem-solving made it difficult for him to connect with his emotional colleagues.
Hyperrational → It is formed from "hyper-" (meaning over or excessive) and "rational" (from Latin "rationalis", meaning reasonable or logical). The word describes a state of being excessively logical or rational, often to the point of disregarding emotions or practical considerations.
Think of 'hyper-' meaning 'over' or 'excessive' combined with 'rational' which refers to being logical. This helps you remember that 'hyperrational' means being overly logical.