* He diffidently offered his opinion, unsure if it would be welcomed. (This shows hesitation and a lack of confidence in one's opinion)
* She diffidently approached the stage, her hands trembling slightly. (This emphasizes a lack of confidence and possibly a fear of public speaking)
* The new employee diffidently asked for help, not wanting to appear incompetent. (This shows a lack of assertiveness and a fear of appearing foolish)
* He diffidently accepted the award, looking down at his shoes. (This implies a lack of self-assurance and maybe even humility)
"Diffidently" describes a hesitant, unconfident, or unsure manner. It suggests a lack of self-assurance and often a fear of being judged or criticized.