Be depressed or sad, as in I was really feeling blue after she told me she was leaving. The use of blue to mean “sad” dates from the late 1300s. See also blue funk, def. 2; have the blues.
Words nearby feel blue
How to use feel blue in a sentence
Citizens, perhaps, need to feel like they can communicate something to science.
How do you feel about Archer and the gang abandoning the cartel and returning to the office?‘Archer’ Creator Adam Reed Spills Season 6 Secrets, From Surreal Plotlines to Life Post-ISIS|Marlow Stern|January 8, 2015|DAILY BEAST
Clad in a blue, striped button-down, a silver watch adorning his left wrist, Huckabee beams on the cover.Huckabee 2016: Bend Over and Take It Like a Prisoner!|Olivia Nuzzi|January 8, 2015|DAILY BEAST
For someone with anorexia, self-starvation makes them feel better.How Skinny Is Too Skinny? Israel Bans ‘Underweight’ Models|Carrie Arnold|January 8, 2015|DAILY BEAST
Yeah, the “Giant man-puppy” that is Gronkowski won't hold a sexual candle to the blue-eyed dreamboat.‘A Gronking to Remember’ Speed Read: 8 Naughtiest Bits|Emily Shire|January 7, 2015|DAILY BEAST
After all, may not even John Burns be human; may not Mr. Chamberlain himself have a heart that can feel for another?God and my Neighbour|Robert Blatchford
In pursuing his alchemical researches, he discovered Prussian blue, and the animal oil which bears his name.The Every Day Book of History and Chronology|Joel Munsell
“You appear to feel it so,” rejoined Mr. Pickwick, smiling at the clerk, who was literally red-hot.The Posthumous Papers of the Pickwick Club, v. 2(of 2)|Charles Dickens
It was such a magnificent sum that Sol did not feel like taking the familiarity with it of mentioning it aloud.The Bondboy|George W. (George Washington) Ogden
Mary is fair as the morning dew— Cheeks of roses and ribbons of blue!