1. The peace negotiations remained _______, susceptible to collapse at the slightest provocation from either faction, requiring delicate diplomatic maneuvering to maintain even tentative progress.

2. Despite facing systematic persecution and repeated imprisonment, the activist remained unbowed, continuing to advocate for human rights with undiminished resolve.

Which word best captures the meaning of “unbowed” in this context?

3. In urban planning terminology, a thoroughfare differs from a residential street primarily in its:

4. A military procurement specialist reviewing inventory would categorize which of the following items under “ordnance”?

5. The researcher’s goal was to replicate the experimental results to validate the original findings and establish scientific credibility.

Which word represents the closest antonym to “replicate” in this scientific context?