1. most cautious or careful; most wary or reluctant
Usage: superlative form of ‘chary’; formal or literary

Examples

• She was the chariest of all the investors when it came to risky ventures.
• Even the chariest critics praised the new policy.
• He remained chariest about sharing personal information online.
• The chariest members of the committee demanded more evidence.
• Among all her friends, she was chariest with her compliments.
• The chariest approach would be to wait for more data.