Antonyms of adj rightful

2 senses of rightful

Sense 1
rightful (prenominal) -- (legally valid; "a rightful inheritance")

INDIRECT (VIA just) -> unjust -- (violating principles of justice; "unjust punishment"; "an unjust judge"; "an unjust accusation")

Sense 2
true (prenominal), lawful, rightful (prenominal) -- (having a legally established claim; "the legitimate heir"; "the true and lawful king")

INDIRECT (VIA legitimate) -> illegitimate -- (of marriages and offspring; not recognized as lawful)

Similarity of adj rightful

2 senses of rightful

Sense 1
rightful (prenominal) -- (legally valid; "a rightful inheritance")
       => just (vs. unjust) -- (used especially of what is legally or ethically right or proper or fitting; "a just and lasting peace"- A.Lincoln; "a kind and just man"; "a just reward"; "his just inheritance")

Sense 2
true (prenominal), lawful, rightful (prenominal) -- (having a legally established claim; "the legitimate heir"; "the true and lawful king")
       => legitimate (vs. illegitimate) -- (of marriages and offspring; recognized as lawful)