When asked about one's belief/opinion on an idea/issue, instead of answering with the cliché "it depends on the context", what word would be appropriate?
Possibly you're looking for,
contextual noun, Logic, Philosophy 1. definition of a word or symbol by explaining the meaning of the phrase or statement in which it occurs. see, Dictionary.com
And if you're game for a two-word submission, you might like,
Context Dependence by Kent Bach
All sorts of things are context-dependent in one way or another. What it is appropriate to wear, to give, or to reveal depends on the context. Whether or not it is all right to lie, harm, or even kill depends on the context. If you google the phrase ‘depends on the context’, you’ll get several hundred million results. This chapter aims to narrow that down. In this context the topic is context dependence in language and its use.
But of course, that depends ...