Antonyms of disregard:
attention, attentiveness, awareness, conscientiousness, curiosity, heedfulness, keenness, sensitivity, warmheartedness, bias, partiality, prejudice, ardor, desire, fervency, passion, vehemence, warmth, zeal, concern, interest, regard.
Examples of usage:
  1. From the age of fourteen, the first judge advocate had been employed in the royal marine service, and whatever intelligence his writings display, they exhibit utter disregard of rights recognised by the British constitution.
    "The History of Tasmania, Volume I (of 2)", John West.
  2. To do otherwise is to disregard the usuages of society.
    "Martine's Hand-book of Etiquette, and Guide to True Politeness", Arthur Martine.
  3. I intimated my disregard of the contingency.
    "The Morals of Marcus Ordeyne", William J. Locke.