It's making me feel very ____________ watching all these criminals walking past.

The correct answer is "uneasy," which effectively describes a feeling of discomfort or anxiety caused by the situation. In the context of the sentence, observing criminals can naturally lead to feelings of fear or apprehension, making "uneasy" the most suitable choice. The word "uneasy" specifically conveys an emotional state where one feels unsettled or apprehensive, which aligns perfectly with the scenario described.

The other options do not fit the context of the sentence. "Easy" suggests a sense of comfort or simplicity, which contradicts the feeling one would have in such a tense environment. "Comfortable" implies a state of physical or emotional ease, again not appropriate in a situation involving criminals. "Relaxed" denotes a calm or stress-free state, which would be implausible while witnessing such distressing scenes. Hence, "uneasy" is the only choice that accurately reflects the emotions elicited by the situation.