Definitions

1. verb

to withhold or conceal information; to not reveal or disclose.

“The company was accused of undisclosing information about their financial crisis.”

2. verb

to refuse to disclose or reveal (something).

“The government was criticized for undisclosing details about the security operation.”

3. verb

to keep secret or conceal.

“The whistleblower was accused of undisclosing confidential documents.”