1) The new plan was considered underminable by the majority of the team.

2) His authority was seen as underminable due to his lack of experience.

3) The fragile alliance between the two groups was underminable by any disagreement.

4) The fundamental principles of the organization were believed to be underminable by internal conflict.

5) The candidate's credibility was underminable after numerous allegations of misconduct.

6) The project's success was underminable by improper time management.

7) The structural integrity of the building was underminable by the heavy rainfall.

8) His credibility as a witness was underminable due to contradictory statements.

9) The school's reputation was underminable by the recent scandal involving faculty members.

10) The delicate balance of power in the region was underminable by external influences.