The phrase "adequately ambitious" is correct and usable in written English.
It can be used to describe a goal or plan that is sufficiently challenging or aspirational without being unrealistic.
Example: "The project proposal was deemed adequately ambitious, aiming to increase productivity by 30% within the next year."
Alternatives: "reasonably ambitious" or "sufficiently ambitious".
She said she "broadly welcomed" several of the minister's proposals, but added she was concerned his plans were not "adequately ambitious".
A 2012 memo from several major investment networks responsible for more than $22.5 trillion in assets put it bluntly: "Further delay in implementing adequately ambitious climate and clean energy policy will increase investment risk for institutional investors and jeopardize the investments and retirement savings of millions of citizens".
Local authority The council "performs adequately" and has "ambitious" regeneration targets.
Spurling can't adequately support her most ambitious claim: that the Humbert affair nearly toppled the Third Republic and was contained only by stringent damage control on the part of government officials implicated in the scandal.
In addressing a basic question that no previous study has adequately answered, it pursues an ambitious synthesis of a number of fields usually kept separate: oral theory, paleography, syntax, and prosody.
In order for the Obama Academy to live up to its ambitious name and adequately prepare students to compete in a global economy; LAUSD must replicate the spirit of the reforms the president is trying to initiate.
Should LAX be unable to adequately expand, other Western cities have ambitious airport plans to capture the Pacific Rim trade and tourism now flowing to Los Angeles.
Ambitious research projects that have not been adequately organized may suffer the consequences of poor quality or unreadable stains if slides are not used relatively quickly after sectioning.
After planning such an ambitious operation, the UN failed to support the mission adequately.
The development of alternative methods is an ambitious but necessary goal if the large and growing numbers of nanoparticles are to be adequately assessed for toxicity.
An ambitious attempt to present all the pressures on black teenagers in a single film, it was a scattergun affair and only adequately performed.
