other intention; ulterior motive; secret purpose
Refers to a hidden or different intention behind someone's actions, often with a negative connotation. Also covers fickleness or double-mindedness in older or literary contexts.
There may be an ulterior motive behind his kindness.
I sense a hidden intention in that person's words.
knowledge of others' minds; telepathic awareness
Compound of 他 (other) and 心 (heart/mind). The exact historical derivation is uncertain, but the meaning follows naturally from the kanji.