The phrase "allowed frustration" is correct and usable in written English.
It can be used to describe a situation where frustration is permitted or acknowledged as a valid response to a circumstance.
Example: "In this project, we have allowed frustration to be expressed openly, as it can lead to constructive discussions."
Alternatives: "permitted frustration" or "acknowledged frustration".
A weakness has been allowing frustration at failure to overcome him – two years ago he hurled abuse at Jonny Wilkinson after Toulon scored a try that confirmed they would win the European Cup final – but O'Gara rates him as the most improved player in Britain this year.
Don't allow frustration or anger to show in your voice while interacting with angry, rude or difficult survey respondents.
Allowing frustration to guide your tone might sour the stylist on you, and you don't want someone who's upset with you cutting your hair.
Trapattoni allowed his frustration to show.
Hughes, a veteran shooting guard who has been benched since Jan .1, allowed his frustration to bubble up Saturday when these same teams played in Detroit.
Francis Maude allowed his frustration to show for an instant when he said: "The Conservative party will always suffer if it is seen as trying to turn the clock back to an imagined golden era".
The governor, who tends to praise the Legislature and his own accomplishments effusively in public, allowed some frustration to show in a recent radio interview, in which he took a rare shot at the Senate Republicans, a caucus that he has successfully courted throughout his tenure.
Nadal's body language had spoken volumes on Sunday and, after the Serb's forehand down the line was snagged by the tape to bring up 2-2, it was Djokovic who allowed his frustration to show.
Obama, more than past presidents, has allowed his frustration with Netanyahu to become public knowledge, and he suggested in an April interview with The Atlantic that Saudi Arabia and other U.S. allies in the Gulf are "free riders" who are overly dependent on the United States to ensure their security. .
