The phrase "act inconsistently" is correct and usable in written English.
You can use it to describe behavior that is not uniform or predictable, often in the context of actions or decisions that contradict each other.
Example: "The manager tends to act inconsistently, which confuses the team about the project's direction."
Alternatives: "behave erratically" or "act unpredictably".
When the Commission made the additional findings after its first order was stayed by the court, it did not act inconsistently with what the court had done.
Yet, the Supreme Court permitted the applicant to act inconsistently with the declared policy of its creator, and to prevail in obtaining a license.
It does mean that thereafter the Commission is 'without power to act inconsistently with the Court's jurisdiction.' Inland Steel Co. v. United States, 306 U.S. 153, 160, 59 S.Ct.
Ministers must not act inconsistently with a national recovery plan when approving developments but there is nothing in Australia's environment laws that compel governments to actually implement the actions contained in the documents to secure a species' survival.
Michael German, a fellow at the New York-based Brennan Center for Jusaide, said that the administration of president Barack Obama had used the Espionage Act inconsistently, prosecuting some whistleblowers but leaving others alone.
In a series of provocative experiments, he has shown that despite how much we say we value our privacy — and we do, again and again — we tend to act inconsistently.
A report by the senior public servant Martin Parkinson found Robert had "acted inconsistently" with the statement of ministerial standards.
To show that this Court acts inconsistently with its own prior decisions does not, of course, demonstrate that it acts incorrectly.
If the Commission finds that the franchising authority has acted inconsistently with the requirements of this subsection, the Commission shall grant appropriate relief.
In a news release, the parent union, the United Brotherhood of Carpenters and Joiners, said officials with Local 157 here had acted inconsistently with the standards expected of the union's employees.
The prime minister confirmed Robert would leave the frontbench after a report by a senior public servant found the minister for human services had "acted inconsistently" with the statement of ministerial standards.
