Choose two words, one from each group, that are most opposite in meaning.(extremeobviousevidence)(discernvaguelyambiguous)

The two words that are most opposite in meaning are "obvious" from the first group and "ambiguous" from the second group.

Step 1: Look at the words in the first group: extreme, obvious, evidence. All these words have a sense of certainty or clarity to them.

Step 2: Look at the words in the second group: discern, vaguely, ambiguous. These words have a sense of uncertainty or lack of clarity.

Step 3: Compare the words from both groups and find the pair that are most opposite in meaning. "Obvious" means something is very clear and easy to understand, while "ambiguous" means something is open to more than one interpretation; not having one obvious meaning. Therefore, "obvious" and "ambiguous" are most opposite in meaning.