attenuated

/AH0 T EH1 N Y UW0 EY0 T IH0 D/
verb
  1. 1

    To reduce in size, force, value, amount, or degree.

  2. 2

    To make thinner, as by physically reshaping, starving, or decaying.

  3. 3

    To become thin or fine; to grow less.

  4. 4

    To weaken.

  5. 5

    To rarefy.

  6. 6

    To reduce the virulence of a bacterium or virus.

  7. 7

    To reduce the amplitude of an electrical, radio, or optical signal.

  8. 8

    (of a beer) To become less dense as a result of the conversion of sugar to alcohol.

Antonyms

adjective
  1. 1

    Made, or become weak; subject to attenuation.

  2. 2

    Long and tapering (especially of leaves)

Source: https://en.wiktionary.org/wiki/attenuate, https://en.wiktionary.org/wiki/attenuated