Thanks for correction. So the word "right" is non-gradable, right?
Again, not so simple. We have an idiom "right as rain". There is another that is "righter than rain".
Webster's Third lists grades of "right" (it has many definitions). This is the beginning:
Main Entry:1right
Pronunciation:*r*t, usu -*d.+V
Function:adjective
Inflected Form:sometimes -er/-est
Etymology:Middle English riht, right, from Old English riht; akin to Old High German reht right, Old Norse r*ttr, Gothic raihts right, Latin rectus straight, right, regere to lead straight, guide, rule, rogare to ask, Greek oregein to stretch out, orektos stretched out, upright, Sanskrit *jyati, **jati he stretches, hastens, raji straightening up, straight; basic meaning: straight
1 : disposed to do what is just or good : RIGHTEOUS, UPRIGHT *a God of faithfulness T just and right is he Deut 32:4 (Revised Standard Version)* *the right soul, high and true and pure W.L.Sullivan* *a right conscience* *a right man*
2 a : being in accordance with what is just, good, or proper *conflicting notions of right conduct B.N.Cardozo* *teach young girls right behavior when faced with T temptations London Calling* *it is right that we should do this* *religious teachings as to what is right and what is wrong* *doing something he thought not quite right* b : held to be in accordance with justice, morality, and goodness usually because approved...