That is ominous (of a specified thing); boding, portentous. Chiefly as the second element in compounds.
Today’s NYT Connections Answers Jan 3, #572 - Daily Updates & Hints
Today’s Wordle Answer Jan 3 #1294- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for Jan 3 Solved
NYT Strands Today - Hints, Spangram & Answers for January 3