Antonyms of adj grade-appropriate

1 sense of grade-appropriate

Sense 1
grade-appropriate -- (the quality of ability and work that is appropriate for students in a specified grade)

INDIRECT (VIA appropriate) -> inappropriate -- (not suitable for a particular occasion etc; "noise seems inappropriate at a time of sadness"; "inappropriate shoes for a walk on the beach"; "put inappropriate pressure on them")

Similarity of adj grade-appropriate

1 sense of grade-appropriate

Sense 1
grade-appropriate -- (the quality of ability and work that is appropriate for students in a specified grade)
       => appropriate (vs. inappropriate) -- (suitable for a particular person or place or condition etc; "a book not appropriate for children"; "a funeral conducted the appropriate solemnity"; "it seems that an apology is appropriate")