State law in Tennessee allows divorce on either fault or no-fault grounds. Irreconcilable differences, and living separately or not cohabiting as spouses (if the couple has no children) for a period of two years or more are considered no-fault grounds.
Fault grounds for divorce in Tennessee are as follows:
natural impotence or incapability of procreation at the time of marriage;
entering a second marriage in violation of a previous marriage that has not ended;
a pregnant wife by an outside party unbeknownst to the husband;
conviction of a crime which, by the laws of the state, render the party infamous;
either spouse has committed a felony and been sentenced to time in prison;
attempted murder by either spouse against the other, by poison or any other malicious means;
habitual drunkenness or abuse of narcotic drugs by either spouse, developed after the marriage began;
inappropriate marital conduct where either spouse is guilty of such cruel and inhuman treatment or conduct towards the spouse as cohabitation is deemed unsafe and improper;
either spouse has left the other either willfully or with malice without cause for a period of one year;
either spouse has refused to remove with that person’s spouse to this state, without a reasonable cause, and has been willfully absent from the spouse residing in Tennessee for two years;
either spouse has offered such indignities to the other spouse’s person as to render the other spouse’s condition intolerable, and thereby forced the other spouse to withdraw, or
either spouse has abandoned the other, or turned the other out of doors, and refused or neglected to provide for the other while having the ability to do so.