Antonyms of adj regnant

1 sense of regnant

Sense 1
regnant, reigning, ruling -- (exercising power or authority)

INDIRECT (VIA powerful) -> powerless -- (lacking power)

Similarity of adj regnant

1 sense of regnant

Sense 1
regnant, reigning, ruling -- (exercising power or authority)
       => powerful (vs. powerless) -- (having great power or force or potency or effect; "the most powerful government in western Europe"; "his powerful arms"; "a powerful bomb"; "the horse's powerful kick"; "powerful drugs"; "a powerful argument")