The phrase "a significant attempt was" is correct and usable in written English.
It can be used when discussing efforts or endeavors that hold considerable importance or impact.
Example: "A significant attempt was made to address the environmental issues affecting the community."
Alternatives: "a notable effort was" or "an important endeavor was".
And Iain Lobban, the head of GCHQ, warned that a "significant" attempt was made to target the computer systems of the Foreign Office and other government departments over the summer.
Earlier this month, Iain Lobban, the head of GCHQ, told a cyber security conference in London that a "significant" attempt was made to target the computer systems of the Foreign Office and other government departments over the summer.
Significant attempts are being made to generate multifunctional, hybrid or peptide combinations as novel therapeutic strategies for type 2 diabetes, however this presents key challenges including design and pharmaceutical development.
Significant attempts are constantly being made by the CPSS to overcome the remaining obstacles to high-quality coverage of perinatal indicators.
He is regarded as the first to make a significant attempt to show that there is no algebraic solution to the general quintic equation (an equation whose highest-degree term is raised to the fifth power).
This was a significant attempt to statistically quantify the relationship between environmental factors (geomorphologic, geologic, and geographic) and landslide occurrence.
There is a significant attempt on to try and drag the prime minister back to a posture where the government is more than just the querulous articulations of its base.
He said: "Mrs Cooke was a lady who had suffered with low mood and depression for a number of years and there had been a significant attempt to take her own life as long ago as 2009".
Written by Tom Wright and directed by Wesley Enoch, Black Diggers is a significant attempt to weave Indigenous contribution in World War I into the well-established myths and legends that surround the Anzacs.
The astronomical system is a significant attempt to try to explain the phenomena but also has mythic and religious significance.
