Question

prefix means the opposite or reverse
suffix means most
suffix means somewhat
sort words according to the meanings of their prefixes or suffixes.
rawest
unlink
dimmest
nearish
emptiest
plumpest
unstack
biggish

Explanation:

• Prefix means opposite or reverse: “unlink” (un - is a prefix meaning opposite, reverse), “unstack” (un - is a prefix meaning opposite, reverse).
• Suffix means most: “rawest” (-est is a suffix meaning most), “dimmest” (-est is a suffix meaning most), “emptiest” (-est is a suffix meaning most), “plumpest” (-est is a suffix meaning most).
• Suffix means somewhat: “nearish” (-ish is a suffix meaning somewhat), “biggish” (-ish is a suffix meaning somewhat).

Answer:

• Prefix means opposite or reverse: unlink, unstack.
• Suffix means most: rawest, dimmest, emptiest, plumpest.
• Suffix means somewhat: nearish, biggish.