The phrase "admitting more or less" is correct and usable in written English.
It can be used when discussing the degree of truth or acceptance regarding a statement or situation, often implying a level of uncertainty or approximation.
Example: "He was admitting more or less that he had made a mistake, but he didn't want to take full responsibility."
Alternatives: "acknowledging somewhat" or "confessing to some extent."
Sullivan is a novelist, and "The Concise Book of Lying" is a series of chatty essays on topics, chosen, as she cheerfully admits, more or less at whim, that have something to do with deception, from Eve and the serpent to Shakespeare's "Othello," polygraph tests, Brer Rabbit, and the digger wasp, an insect that builds several false burrows in order to disguise the location of its real home.
Search hard for recent interviews with anyone responsible for Tulip Fever, and the most you're likely to find is the clip above of Christoph Waltz cheerfully admitting Harvey Weinstein more or less press-ganged him into doing the film.
When you lose yourself down the rabbit hole of theoretical immigration economics—imagining how admitting more of this group and less of that one would ripple through the economy you realize fairly quickly that there is no way to predict what the impact of a change today will be a decade down the road.
Barker admits he more or less knows what that feels like.
Pulling, Kelly admits, was more or less autobiographical, the story of his and Horgan's miserable attempts to find happiness, more often than not at the bottom of a vodka glass (he has been teetotal for eight years).
Walsh the ghost, whom Rose admits is more or less her own creation, proposes that she publish an unfinished Walsh McLaren manuscript with the help of a seedy, needy young novelist named Gavin Clancy David Aaron Bakerr).
Or did it have to wait a little longer, for some better qualified system … with a Ph.D.? If the theory is to apply to anything but highly idealized laboratory operations, are we not obliged to admit that more or less "measurement-like" processes are going on more or less all the time, more or less everywhere.
While no qualitative form admits of more or less, their substrates of inherence do (EP, ch. de qualitate, fol. 41vb).
"Why not just admit it: more or less all religions are homophobic".
"Why not just admit that more or less all religions are homophobic?" Pastor Marcos has his answer ready.
