The phrase "act carelessly" is correct and usable in written English.
You can use it to describe someone who is behaving in a reckless or thoughtless manner, often leading to negative consequences.
Example: "If you continue to act carelessly, you might end up in a dangerous situation."
Alternatives: "behave recklessly" or "conduct oneself irresponsibly".
"When we say we want to claim our land back, we are not going to act carelessly," he said.
Being on a high school sports team does not make a student less likely to use drugs, engage in risky sexual behavior or otherwise act carelessly, researchers report.
"It gave the authorities another chance to claim that foreign oil companies drilling in Brazil act carelessly," he laments.Chevron does not try to defend its initial media response, but says that from a technical point of view it did everything right and that it is co-operating fully with Brazilian agencies.
Two decades ago, young Xers working for dot-com startups watched their Boomer bosses act carelessly only to be caught off-guard when the market cooled.
While this framework affords directors considerable leeway to manage the affairs of the company through a bedrock principle of Delaware law called the business judgment rule, it also serves to deter directors from engaging in problematic behavior and to hold directors responsible when they act carelessly or put their own interests above those of the shareholders.
All I could think was, "I read all those books and I still act carelessly, thoughtlessly, and regrettably.
It found that the police had acted carelessly.
At Southwark crown court yesterday, he said: "AIB and BoS have undoubtedly acted carelessly and imprudently by failing to make full inquiries before advancing the money.
If he could establish that Mr. Maron was a private figure, the plaintiff's burden to prove actual malice would be waived and he would have to show only that the accusers acted carelessly.
The court found that Justice Alessandro's brother, Judge Francis M. Alessandro, had acted carelessly, but not with the intent that equates to "the type of 'truly egregious' conduct that warrants removal from judicial office".
In a letter to Congress, Comey said he would not revisit his initial conclusion, announced in July, that Clinton acted carelessly, but not criminally, when she used a private email account as secretary of state.
