The phrase "a reasonably late" is correct and usable in written English.
It can be used to describe a time that is considered late but still acceptable or within a reasonable range.
Example: "We arrived at the party at a reasonably late hour, just as the festivities were getting started."
Alternatives: "somewhat late" or "fairly late".
"She's a reasonably late-maturing filly and she's only raced about two furlongs this season, so she lines up fresh.
We awoke Sunday morning at the reasonably late hour of 9, had a nice brunch of eggs Dauphine (eggs Benedict with country ham and fried green tomatoes) at a sunny nearby cafe, Eat, and set off in search of the grave of Marie Laveau, the fabled voodoo queen.
So when my editor at the Guardian nudged me last week to say my next column was more than reasonably late, I had to delve into the recipe file kept for just such emergencies and came up with today's three dishes that are only loosely related, if at all.
At the moment, there's the feeling that the London stage is marking time, nowhere more literally than in the National's agonizingly slow take on Christopher Marlowe's "Dido, Queen of Carthage," a reasonably slender late-16th-century drama that for some reason lasts just shy of three hours in the director James Macdonald's take on it at the Cottesloe auditorium.
(Tórshavn is about the size of a reasonably large field).
The current method of termination of translation using protein release factors must be a late-evolving feature because the release factors could only have evolved after protein synthesis was possible with a reasonably large repertoire of amino acids.
This weekend sees the arrival of Terminator: Genisys, the latest in a reasonably robust franchise, although it was six years ago that previous entry Terminator Salvation began with £6.94m, including £2.16m in previews.
Try the Home Brew I am a reasonably successful woman in my late 30s.
In his early teaching days, Mr. Brown approached a reasonably fit woman in her late 40s who was in a seated pose, a simple cross-legged forward bend.
The first few years I saw him, he still had a reasonably full schedule and our sessions were usually late in the day; the strain told on him.
Most sonatas of the late 17th and early 18th centuries consisted of a reasonably animated, thematically well-defined first movement, a more-subdued second movement, and a vibrant final movement.
