Adjective
negligible - So small or unimportant that it can be ignored or doesn't have a noticeable effect; insignificant in amount, size, or impact — too minor to be worth considering.

The difference in price was negligible, so she bought with the higher-quality option.
promiscuous - Lacking discretion or selectivity, especially in choosing relationships or associates; mixing or combining things randomly.

The character in the novel was portrayed as promiscuous, frequently engaging in relationships without commitment or emotional attachment.