Question

what is the meaning of the word nebulous as used in the passage? use the antonym clear as a context clue to help you determine the meaning. reba, a talented math and science student, has had a clear career goal—to become a biochemical engineer—ever since she was a child. her twin sister, meanwhile, has only a nebulous idea of what she wants to do after graduation. complicated impractical vague

Explanation:

The passage contrasts Reba's clear career - goal with her twin sister's nebulous idea. Since "clear" means well - defined, the antonym "nebulous" likely means not well - defined or vague.

Answer:

vague