an act of crass stupiditystupiditystu‧pid‧i‧ty /stjuːˈpɪdəti $ stuː-/ noun (plural stupidities) 
all the horrors and stupidities of war2[uncountable] the quality of being stupid
EXAMPLES FROM OTHER DICTIONARIES
- Several guys were wounded because of his stupidity.
- The past 41 years have been an endless parade of stupidities.
- Clearly, more and better research will be required if science hopes to find a cure for diet-related stupidity in our lifetime.
- For all my stupidity, I was able to understand that much.
- Gedge pointed out the inherent stupidity of the famous theatrical cliché.
- His cursing, stupidity and general obnoxiousness provide ample material for Sedaris' wit.
- In the end it was only his own meanness and stupidity that brought down nemesis.
- Recognisable human failings-pomposity, stupidity, naivety and cunning-came together in hilariously believable scripts.
- They've described the incident as mindless stupidity.
- This was at odds with everything the rangers had said about Adivassi laziness, Adivassi stupidity.
COLLOCATIONS FROM OTHER ENTRIES an act of crass stupidity
an act of crass stupidityPHRASES FROM OTHER ENTRIES
- All these artists were the height of fashion in the middle years of the 19C.
- The stunning luminous display and thickly padded, genuine leather wristband are the height of fashion in any setting.
- By sheer luck I had given Reuters their biggest news scoop since the assassination of Abraham Lincoln in 1865.
- He made it through sheer luck and by attaching himself to one guy after another and then stepping over them.
- She flung out her hands and caught the edge of the stone by sheer luck.
- So I guessed right; sheer luck.
- Would anybody see if I just nudged them over the edge for their sheer stupidity?
WORD FAMILYnounstupiditystupidadjectivestupidadverbstupidly
1[countable, uncountable] behaviour or actions that show a lack of good sense or good judgment: all the horrors and stupidities of war2[uncountable] the quality of being stupid