underdeveloped, slow, behind, retarded, subnormal, half-witted
They're opposites, so they're antonyms.
shifting backward
what is backward distribution
They are synonyms.
He struggled to walk backward down the narrow hallway.
There are many stereotypes about backward classes. SC's, ST's and OBC's are backward classes.
backward
Synonyms
Relative and kin are synonyms.
thambiran
Looking Backward was created in 1888.
Backwardness is the noun form of backward.