(one's) heart isn't in it(redirected from their heart isn't in it)
(one's) heart isn't in it
One is not emotionally invested in something. I used to love running, but my heart just isn't in it anymore—that's why I quit the track team this year. I can tell by the way you wrote this that your heart wasn't in it. Is something distracting you?
See also: heart
heart in it, have one's
Also, put one's heart in it. Be emotionally involved in something, undertake something enthusiastically, as in Nancy puts her heart in her teaching. This expression may also be put negatively as one's heart is not in it, as in She decided to quit; her heart just wasn't in this kind of work. [Late 1700s] Also see have no heart for.
your heart isn't in something
If your heart isn't in something you are doing, you are not enthusiastic about it. Note: The heart is traditionally regarded as the centre of the emotions. Playing was no longer fun. I lost my competitiveness and my heart wasn't in it. She was a successful teacher, popular with her pupils and her colleagues, but her heart wasn't in it.