The phrase "a complex and unique" is correct and usable in written English.
It can be used to describe something that has multiple layers or intricacies, as well as being one-of-a-kind or distinctive.
Example: "The artist's work is a complex and unique blend of styles that captivates the audience."
Alternatives: "a multifaceted and distinctive" or "an intricate and singular".
It's a complex and unique tool.
"Babysitting is a complex and unique problem.
Product-counterfeiting prevention is a complex and unique process that benefits from applying evidence-based crime science theory.
SLDV, dynamic ESPI and hi-speed DIC are here first deployed in a complex and unique test on the estimation of FRFs with high spatial accuracy from a thin vibrating plate.
The study is based on a complex and unique data set of water stable isotopes (i.e., δ18O and δ2H), radon-222 activities (i.e., 222Rn) and groundwater levels to better understand the interaction of fresh groundwater and recirculated seawater in a snowmelt-affected subterranean estuary (STE) in a boreal region (Îles-de-la-Madeleine, Qc, Canada).
I'm someone on a complex and unique path, just like everyone else.
But he added that government believed Crossrail funding decision was "an appropriate course of action to deliver a very complex and unique infrastructure project within the delivery timetable".
If only it were that easy: "FireFold has developed a very complex and unique application which uses your existing hardware to create an HDMI Cable.
These advances have made our specialty grow into a highly complex and unique field clearly separated from diagnostic radiology and radiation oncology.
Our results reinforce the emerging picture of Mimivirus as a very complex and unique amoebal pathogen.
The problem for carmakers is that every car buyer performs an extremely complex and unique equation involving style, performance, reliability, expectation, brand cachet and price.
