Antonyms of valued:
unworthy, qualitative.
Examples of usage:
  1. Here again, there has been much to lament in all that led to his resignation and fresh separation from many with whom he has acted during half his political life, many so highly valued in public and private.
    "Lady-John-Russell", MacCarthy, Desmond.
  2. Among other valued curiosities, one sees in a glass case the deed of perpetual sovereignty granted to the Order of St. John by Charles V., dated March, 1530. Nothing upon earth endures for long.
    "The Story of Malta", Maturin M. Ballou.
  3. I asked him if he had ever ventured into the Doone- valley; but he shook his head, and replied that he valued his life a deal too much for that.
    "Lorna Doone, A Romance of Exmoor", R. D. Blackmore.