The phrase "alarming thought" is correct and usable in written English.
It can be used when expressing a concern or worry about a particular idea or situation that causes fear or anxiety.
Example: "The alarming thought that we might run out of clean water in the near future keeps me awake at night."
Alternatives: "disturbing idea" or "worrisome notion".
Why is that an alarming thought?
Yahoo.com's Dan Wetzel had an alarming thought: Garrett just made Al Davis look smart.
He called Gordon Brown, "a workhorse at the helm", a most alarming thought.
The alarming thought is that a "species barrier" has been crossed and may be no longer protecting humans.
And businesses were struck by an alarming thought: even if this threat proves empty, commercial secrets are no longer safe.Smaller leaks are nothing new in the corporate world.
Given what an alarming thought this is, and since we aren't there yet, why can't we do more to stop it from happening?
For too many Hawaii residents that evokes alarming thoughts of a loss of their American passports, or American-Indian-style casinos.
Suddenly a person can feel alone, wondering if they are the only person who experiences alarming thoughts... when intrusive thoughts center on a baby, the degree of anxiety is exponentially amplified.
By singling out the anxiety that provokes your fear -- be it a phobia related to turbulence, crashing or claustrophobia, for example -- you can identify the alarming thoughts and images that cause distress and abate flight anxiety.
This week brings further pause for thought, with alarming news from the other end of the world.In the past, researchers have used data from planes that fly criss-crossing paths over Greenland to assess the extent of its ice sheets.
(Gore is in fact the target of the comment on the K.K.K .. Stein and DeMuth see an alarming new trend in liberal thought, one brought to perfection by Stalin and Brezhnev, "to portray anyone who isn't a card-carrying liberal as not only corrupt, but also mentally unsound".
