The phrase "ambitious in size" is correct and usable in written English.
It can be used to describe something that is large or grand in scale, often implying a sense of aspiration or boldness regarding its size.
Example: "The new skyscraper is ambitious in size, aiming to redefine the city's skyline."
Alternatives: "grand in scale" or "large in scope."
It was ambitious in size but not remarkably different from other smaller, tentative efforts under way elsewhere.
Ambitious in size and scope, the book is divided into three sections, each encompassing poetry, essays, stories and memoirs.
Neither as ambitious in size nor as explicit as Ryggen's, Ms. Forrer's weavings contain ambiguities for us to sort out.
The tribe's plans, however, are more ambitious in size and scope: The casino would have 490,000 square feet of gambling space, with 350 card tables and more than 10,000 slot machines.
You don't often see downtown theatre this ambitious, either in size or in spirit.
It is a deeply ambitious project, both in size and scope: the company now uses recycled plastic for 30percentnt of its packaging and has set up four "eco-factories", each of which uses around 50percentnt less energy and water.
Future studies will need to be ambitious, not only in size to show significant change but over extended periods to expose matched groups of doctors to different interventions.
Selling it could yield much-needed money at a time of belt-tightening and give the Bloomberg administration a chance to replicate its development model deep into the boroughs outside Manhattan — a mix of homes, offices and retail space that is ambitious in appearance and size.
She found the work in Arkansas interesting, but wanted "something more ambitious in terms of size and scope".
The review indicates that efforts were often made to develop individual projects which were innovative, but these were also often ambitious in scope and size, were generally weak technically, and were implemented in a largely unfavourable economic climate in countries where government sometimes showed limited sensitivity to smallholder development potential and needs.
Soliman's goal is characteristically ambitious: "We want to take No. 1 in the marketplace we're operating in--in size, sales and profitability," he says.
