"miscellaneous thought" is a correct and usable phrase in written English.
It is used to refer to an idea, opinion, or notion that is not organized or structured in any particular way. For example, "I had a miscellaneous thought about the situation that I hadn't considered before."
Some miscellaneous thoughts... First, China knows more than it tells the US on North Korea (of course) but its influence over North Korean leadership decisions has been weaker than many presume.
Three recent news items, manifesting fine art's ominous popularity these days, stir miscellaneous summer thoughts.
Everyone has probably had enough of the Great "Tosca" Scandal at the Met last month — the last-minute firings and hirings, the tit-for-tat between directors old and new, the funny business with prostitutes and stunt jumpers, and, of course, the boos — but I'd like to append a few miscellaneous last thoughts.
Beyond such japes, the only weak pictures in the show are what are quite likely large worksheets, on which Ramírez rehearsed miscellaneous ideas with little thought to their over-all unity.
This has allowed him to manufacture numerous conversations as well as to conjure up the inner thoughts of such miscellaneous characters as a rickshaw puller, gangster, matchmaker and cook.
His second volume of poems, Miscellaneous Poems, expressed these antislavery thoughts and its 1,500 copies sold well.
The Miscellaneous Observations contains many of Johnson's early thoughts and theories on Shakespeare.
The new technology, for all its boons, also bedevils us with alluring distractors, cyberbullies, thought-nabbers, calm-frayers, and a spiky wad of miscellaneous news.
I couldn't believe that some swine eating hypocrites would grimace at the thought of my aunt's brain masala, while chewing intestinal casings filled with miscellaneous animal scraps (hot dogs).
