fù​wài​bù​xìng

negative externality

  1. 负 負 fù adjective
    negative
    (bound form) minus or negative in mathematics; referring to a negative electric pole or charge
  2. 外部 wài​bù nounadjective
    external
    outside a particular range or system, such as a company or environment; non-internal
  3. 性 xìng affix
    [-ity]
    Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".