Words or phrases that indicate the opposite of a goal or target, meaning This is something to avoid, as it opposite of my desire

Question

_____ - noun or adjective: indicating something to avoid, something opposite of what I want, something repulsive.

Example 1: My business's TARGET customers are Baby Boomers because they spend all their money. Conversely, my business's _____ customers are Millennials because they complain and buy very little.

Example 2: I do sprints in my exercise routine because my GOAL body is lean and agile, like Usain Bolt. I don't lift heavy weights because because my _____ body is too bulky, like the strongman who played The Mountain in Game of Thrones.

I searched for: - antonyms of "goal"/"target" - synonyms of "undesirable", "reject"

I considered: - "antitarget" but it's a scientific phrase for another application - "undesired", "unwanted" ... etc which would work if there is nothing more specific - "reject" is the best word I can come up with so far

Please let me know if there are synonyms.

Answer 1

Perhaps simplistically, the opposite of target is nontarget:

[Merriam-Webster]
: not being the intended object of action by a particular agent
// effect of insecticides on nontarget organisms
// More than 200 deaths were nontarget animals, including foxes, opossums, raccoons, skunks and a bear.
— Sophie Lewis, CBS News, "Trump administration reauthorizes use of "cyanide bombs" to kill wild animals," 8 Aug. 2019

So, in one of the example sentences:

Conversely, my business's nontarget customers are Millennials because they complain and buy very little.