1. most stretched tight or rigid; most strained or stressed
Usage: superlative form of tense
2. most nervous, anxious, or emotionally strained
Usage: superlative form of tense

Examples

• The rope was at its tensest point just before it snapped.
• Her muscles were tensest right before the race began.
• This was the tensest moment of the entire negotiation.
• He felt tensest during the final exam period.
• The atmosphere in the room was tensest when the results were announced.
• The wire became tensest when maximum weight was applied.