The phrase "obscure phrase" is correct and usable in written English.
It is typically used to refer to a phrase or group of words that is difficult to understand or not commonly used. Example: The author's writing style was filled with obscure phrases, making it challenging for readers to comprehend the meaning of his work.
Not to be outdone, Gladwell challenged Booth to a new contest, involving the more obscure phrase "perverse and often baffling".
He summed it up using an obscure phrase from feudal China: jiatianxia — "to treat the state as your possession".
Within the space of a few years, the idea of Responsible Research and Innovation, and its acronym RRI, catapulted from an obscure phrase to the topic of conferences and attempts to specify and realize it.
Within the space of a few years, the idea of Responsible Research and Innovation, and its acronym RRI, catapulted from an obscure phrase to an issue in the European Commission's Horizon 2020 Program, to a topic of conferences (Danish EU Presidency [2012]) and edited volumes (Owen et al. [2013a]).
Synergy is not a term that Bucky coined, but he did move it from an obscure phrase from chemistry into the popular use that it has today.
And on these existent shards were written obscure phrases, which she, the poet, today transcribes.
But Irish readers might find Raymond Carver just as full of obscure phrases, and Enright's stories set in the United States get the details right, more or less.
It has even set up a fast-growing (although less profitable) Chinese fast-food chain, East Dawning.Mr Novak heard the Chinese employees behind these feats use such obscure phrases such as "future back vision", "bold request" and "action versus activity".
Obscure phrases like "my government will continue to build an economy that rewards those who work hard" may be invoked as cover for substantive changes, such as benefit cuts, which could still be effected through regulation at some later stage.
Again, he normally proceeded chapter by chapter through Aristotle's text, keeping "literal" comments on philological questions and obscure phrases separate from notae on literary, doctrinal, or methodological issues raised in the work.
I was there a few years back when I realised just how many sex workers were operating out of a single hotel, under the cover of obscure phrasing and disguised propositions.
