Is hippopotomonstrosesquippedaliophilia a word?

What's a word?

Is hippopotomonstrosesquippedaliophobic a word? Is hippopotomonstrosesquippedaliophobe a word? Is anti-hippopotomonstrosesquippedaliophobic a word? Is supercalifragilisticexpialidocious a word?

There's no official board of English language authorities who make judgements about what is and isn't a word. If a combination of letters, or a combination of sounds can be understood by people, then it should probably count as a word.

In English, you can produce new words by adding prefixes or suffixes to them. The new word you produce may not represent anything than exists, but that doesn't mean it's not a word.

Hippopotomonstrosesquippedaliophilia is a real word, whether or not it's a real condition.

So, to answer your question, is there an opposite to every -phobia word, yes there is a word that means the opposite, but that word may not describe a real thing.