imaginary，imaginative，imaginable，imagined区别

imaginary 虚构的
imaginative 想象力丰富的
imaginable 可以想象得到的，通常放在被修饰名词的后面
imagined 确定是原词吗？没见过，大概是被想象出来的

imaginary指“想象的”、“虚构的”, eg:the characters in the novel are imaginary.
imaginative指“ 富于想象力的”, eg:she is a imainative writer.
imaginable 指“可想象的”, 常放在名词后面, 前加 all, only, every 或最高级形容词.eg:we have tried all the means imaginable

看词缀来辨析：
ary 表示客观。比如说The novel is so imaginary!意思为这本小说太虚构了！
tive有积极的意思，imaginative=be active to imagine
able表一种能力，imaginable=be able to imagine
ed表被动