Yes, it will be taxed as ordinary income. If you look at a 2019 Form 1040, the amount you withdraw will show up on line 4b.
Also, if the person from which you inherited the IRA died after 12/31/19 and they were not your spouse, then you have until 12/31/2030 to withdraw all of the inherited IRA. If either of those are not true, then there may be other options.