adjective. Causing avoidance of a thing, situation, or behavior by using an unpleasant or punishing stimulus, as in techniques of behavior modification.

Averse; turning away.

adjective. of or pertaining to aversion.

adjective. exhibiting avoidance or causing avoidance.

adjective. Tending to repel, causing avoidance (of a situation, a behaviour, an item, etc),

adjective. Avoidance that can be taught through the use of stimulus that either punish or reinforces.

noun. A grammatical case indicating that something is avoided or feared; the evitative case.

noun. An unpleasant stimulus intended to induce a change in behaviour.

adjective. tending to repel or dissuade

"The researchers bred mice without the gene and put them in aversive situations, such as giving them a mild shock at a certain point in their cage."

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