The phrase "lengthy project" is a correct and usable part of a sentence in written English.
You can use this phrase in any context where you need to refer to a project that is expected to take an extended length of time to complete. For example, "This lengthy project will require a great deal of dedication and effort from all team members."
Converting a sugar mill is an expensive and lengthy project, brokers said.
As I'm sure many of you know, once you've finished a lengthy project waiting for other people to make decisions is excruciating.
He has been writing for over 40 years; each book is a lengthy project as he pours so much research into it (learning Welsh for The Owl Service, for example).
The city has taken more than six years to renovate a building it owns in Downtown Brooklyn, and Howard Golden, the borough president, who called the lengthy project "a particular embarrassment," wants the work finished fast.
If you opt for the do-it-yourself approach, steel yourself for a fairly lengthy project; depending on the number of old recordings you have to transfer and how many misburned discs you encounter, completing the transfer could take weeks or months.
HS2 is a lengthy project.
Up to now a lot of this has been integrated into apps through more lengthy projects.
Indeed, $100 million may seem like a lot of money, but the development costs for lengthy projects like these can quickly race toward the billions of dollars, suggesting that if they carry out their mission, they're going to need a whole lot more.
Boulton generally preferred not to take on lengthy projects, and he warned Cook that its completion might take years.
The strengths of INSIGHT are its large projected sample size, its lengthy projected follow-up time period, and its ethnically, socially, and clinically diverse cohort, reflecting the diverse makeup of Toronto.
My own clutterbug ways became enough of a problem that I undertook a lengthy decluttering project, and wrote a book about it.
