1. superlative form of insecure; most lacking confidence in oneself or one's abilities
Usage: superlative degree
2. superlative form of insecure; most unsafe or not firmly fixed
Usage: superlative degree

Examples

• She felt insecurest when speaking in front of large audiences.
• The insecurest members of the team often hesitated to share their ideas.
• That old ladder is the insecurest one in the garage.
• He was insecurest about his appearance during his teenage years.
• The insecurest part of the bridge needed immediate repair.
• Among all the candidates, she seemed the insecurest about her qualifications.