emotional; sentimental; affective
Describes a person, attitude, or approach that is driven by emotion rather than reason. Often used in contrast with 理性的 (rational).
He tends to make emotional decisions.
An emotional attitude won't solve the problem.
理性的 is the direct antonym, meaning rational or logical.
Compound of 主情 (shujō, 'emphasis on emotion') + 的 (-teki, '-like, -al'). The exact derivation of 主情 is uncertain, but it follows a pattern of Sino-Japanese philosophical terms.