Any process that stops, prevents or reduces the frequency, rate or extent of potassium ion import across the plasma membrane.
Synonyms:
exact_synonym:
down regulation of potassium import; down regulation of potassium ion import; down regulation of potassium ion uptake; downregulation of potassium import; downregulation of potassium ion import; downregulation of potassium ion uptake; negative regulation of potassium import; negative regulation of potassium ion uptake
narrow_synonym:
inhibition of potassium import; inhibition of potassium ion import; inhibition of potassium ion uptake