1. to perform an action in a careless, dangerous, or irresponsible manner without regard for consequences
He decided to do recklessly and jump off the cliff without checking if it was safe.
Ele decidiu agir imprudentemente e pular do penhasco sem verificar se era seguro.
2. to act with abandon or extreme boldness, often foolishly
She tends to do recklessly when she's angry, making decisions she later regrets.
Ela tende a agir imprudentemente quando está furiosa, tomando decisões que depois lamenta.