Updated on March 16, 2024
| spanish | The Spanish flu killed millions in the early twentieth century. |
| avian | Avian flu is a highly contagious viral disease that can affect poultry and other birds. |
| asian | The Asian flu pandemic of 1957-1958 was caused by an influenza A virus of the H2N2 subtype. |
| stomach | |
| intestinal | I've been suffering from the intestinal flu for the past few days and it's been awful. |
| bad | I've been home with a bad flu all week. |
| gastric | The gastric flu can cause severe stomach cramps, nausea, and vomiting. |
| blue | I'm sorry, I'm not sure what you mean by "blue flu". |
| pandemic | The pandemic flu is an event that has occurred throughout history. |
| severe | I was out sick with a severe flu last week. |
| mild | She was only suffering from a mild flu |
| swine | Swine flu is a respiratory disease caused by the type A H1N1 influenza virus. |
| common | |
| terrible | I'm suffering from a terrible flu and I can't go to work. |
| hour | I had the hour flu |
| asiatic | |
| cold | My brother has been suffering from a bad cold flu for the past few days. |
| nasty | I've been feeling under the weather with this nasty flu |
| called | |
| seasonal | The seasonal flu can cause fever, chills, and muscle aches. |
| russian | The Russian flu was a particularly severe strain of influenza that caused a pandemic in 1889–1890. |
| deadly | The deadly flu has spread throughout the region, causing widespread illness and death. |
| virulent | The virulent flu incapacitated the entire town, causing widespread illness and misery. |
| ordinary | The ordinary flu is not as deadly as the Spanish flu was. |
| worst | My sister had the worst flu last year. |
| epidemic | The epidemic flu has spread throughout the city and is affecting thousands of people. |
| bird | |
| annual | Get your annual flu shot today to protect yourself from the virus. |
| damn | The damn flu is making me miserable. |
| awful | I'm suffering from an awful flu that's left me feeling weak and miserable. |
| day | The day flu left me feeling weak and achy. |
| gastrointestinal | I was out sick with the gastrointestinal flu last week. |
| horrible | I woke up with a horrible flu and had to stay home from work. |
| anti | |
| yuppie | It wasn't the flu he had, it was just a case of yuppie flu |
| dreadful | She had been ill with a dreadful flu for a week. |
| slight | I'm feeling a bit under the weather with a slight flu |
| violent | The violent flu kept me bedridden for a week. |
| equine | The horse was quarantined due to equine flu |
| incipient | I am feeling the incipient flu coming on. |
| wretched | I've got the wretched flu and I feel terrible. |
| persistent | The persistent flu has been going around for weeks now. |
| blown | The flu has made me feel blown flu |
| debilitating | The debilitating flu kept him home from work for several days. |
| bronchial | Bronchial flu is a type of influenza that affects the bronchi, which are the large airways in the lungs. |
| intentional | My classmate gave me the intentional flu |
| contagious | The contagious flu had spread to most students at school. |
| futuristic | I can't believe I got the futuristic flu it's 2077, and we should have cured this by now! |
| grade | I'm feeling under the weather with the grade flu |
| maternal | She was diagnosed with maternal flu after giving birth. |
| mysterious | He was lying in bed with a mysterious flu that made his body ache. |
| recurrent | She is going to the doctor because she has a recurrent flu |
| goddamn | I'm stuck in bed with this goddamn flu |
| hog | The hog flu was a deadly pandemic that spread around the world in 2009. |
| feline | The cat developed a bad case of feline flu |
| infectious | The infectious flu spread rapidly through the school. |
| devastating | The devastating flu has caused widespread panic and illness throughout the city. |
| egyptian | That cold turned out to be the egyptian flu |
| feverish | I tossed and turned in my bed with a feverish flu |
| dearest | Dearest flu I hope you're feeling better soon. |
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