The phrase "successful endeavour" is a correct and usable phrase in written English.
It can be used in any formal or informal writing to describe a successful attempt at a task or goal. For example: "Through her hard work and dedication, she was able to complete the project, achieving a successful endeavour."
"The commission was not a successful endeavour.
DMIP proved to be a successful endeavour, providing the hydrologic research and forecasting communities with a wealth of results.
In the world – and this was a conviction that developed in office from the time of the successful endeavour in the Balkans to prevent Slobodan Milosevic from slaughtering the Kosovans – the overarching belief was that democracies should not stand by when bad things are happening in other places.
This successful endeavour on the international scene further stabilizes internal power after the elections of 2014.
Once internal power was stabilized the government, however, started a rather successful endeavour to get international acceptance and even recognition.
Science is a successful endeavour because its concepts are applicable to a wider range of phenomena the less they are tied to the specifics of any context, and representations become more inclusive and abstract the less [sic] contextual parameters they include.
British Sea Power deserve huge credit for thinking outside of the creative and promotional box so indefatigably, but this latest outing is not one of their more successful endeavours.
The reference to the punishment is in connection with Cicero's (historically correct, and successful) endeavours to acquit Sextus Roscius of the charge of having murdered his own father.
A successful charitable endeavour focuses on building relationships.
While Cook was feted for his successful voyage, Endeavour was largely forgotten.
Research suggests that successful BOP endeavours are characterized by communities that benefit by obtaining basic services or growing more affluent, which precipitates a cycle in which their purchasing power expands while allowing the businesses that underlie the basic services to keep growing.
