The phrase "a meticulously planned" is correct and usable in written English.
It can be used to describe something that has been carefully and thoroughly organized or arranged.
Example: "The event was a meticulously planned affair, with every detail accounted for to ensure its success."
Alternatives: "a carefully orchestrated" or "a thoroughly arranged".
What to others will seem like random slaughter is to them a meticulously planned military exercise.
And yes, here were are, conducting a meticulously planned chat, no time for faffing about.
US intelligence officials this weekend confirmed the details of a meticulously planned plot in 2008 to assassinate Moughniyeh.
The titular heroine of Maggie's Plan, played by Greta Gerwig, is intent on living out a meticulously planned life.
It was a meticulously planned escape, carried out with the physical fitness and military precision one would expect of an SAS commando.
In September 2008, suicide bombers in two cars struck the U.S. Embassy in Sana in a meticulously planned operation that left 10 Yemenis and all 6 attackers dead.
David Coltart, a lawyer and opposition legislator, said he thought most opposition members would support a peaceful, meticulously planned mass-action strategy that would persuade Mr. Mugabe to resign without damaging the economy or provoking violent clashes.
Or, you might say, al-Qaida's: this was, after all, an attack meticulously planned for live TV, a supreme, shocking piece of political theatre.
Those exist, and Manchester has staples like Selective Hearing – a series of meticulously planned warehouse raves— a lot less official and a lot more lawless than most club nights, but by no means a glorified house party.
We set a strategy in motion for its return but a seemingly logical, meticulously planned series of exchanges via members of various clubs inevitably proved fallible.
It was a killing the teenager had meticulously planned in a murder manual written a few months earlier when she was in juvenile custody.
