becoming and making less strong

wilt

[wɪ̱lt]
 wilts, wilting, wilted
 1) VERB If a plant wilts, it gradually bends downwards and becomes weak because it needs more water or is dying.
  The roses wilted the day after she bought them...
  [V-ed] Remove any damaged or wilted leaves.
 2) VERB If someone wilts, they become weak or tired, or lose confidence.
  She soon wilted in the morning heat...
  The government wilted in the face of such powerful pressure.

fade

[fe͟ɪd]
 
 fades, fading, faded
 1) V-ERG When a coloured object fades or when the light fades it, it gradually becomes paler.
  All colour fades - especially under the impact of direct sunlight...
  [V n] No matter how soft the light is, it still plays havoc, fading carpets and curtains in every room.
  [V-ing] ...fading portraits of the Queen and Prince Philip.
  Derived words:
  faded ADJ-GRADED ...a girl in a faded dress. ...faded painted signs on the sides of some of the buildings.
 2) VERB When light fades, it slowly becomes less bright. When a sound fades, it slowly becomes less loud.
  Seaton lay on his bed and gazed at the ceiling as the light faded...
  [V into n] The sound of the last bomber's engines faded into the distance.
 3) VERB When something that you are looking at fades, it slowly becomes less bright or clear until it disappears.
  [V from/into n] They observed the comet for 70 days before it faded from sight...
  [V from/into n] They watched the familiar mountains fade into the darkness.
 PHRASAL VERB
 Fade away means the same as fade. Also V P V P into n We watched the harbour and then the coastline fade away into the morning mist.
 4) VERB If someone or something fades, for example, into the background, they become hardly noticeable or very unimportant.
  [V into/from n] She had a way of fading into the background when things got rough...
  [V into/from n] The most prominent poets of the Victorian period had all but faded from the scene.
 PHRASAL VERB
 Fade away means the same as fade. Also V P V P into n The sound comes up and slowly fades away into the distance.
 5) VERB If memories, feelings, or possibilities fade, they slowly become less intense or less strong.
  Sympathy for the rebels, the government claims, is beginning to fade...
  Prospects for peace had already started to fade.
  [V-ing] ...fading memories of better days.
 6) VERB If someone's smile fades, they slowly stop smiling.
  Jay nodded, his smile fading.
  Phrasal Verbs:
  - fade away
  - fade out