Synonyms for life-threatening
life-threat·en·ing

Princeton's WordNetRate these synonyms:0.0 / 0 votes

1. dangerous, grave, grievous, serious, severe, life-threateningadjective

   causing fear or anxiety by threatening great harm

   "a dangerous operation"; "a grave situation"; "a grave illness"; "grievous bodily harm"; "a serious wound"; "a serious turn of events"; "a severe case of pneumonia"; "a life-threatening disease"

   Synonyms:
   severe, sober, serious, wicked, stark, unsafe, terrible, hard, spartan, stern, heavy, unplayful, weighty, monstrous, grave, good, grievous, atrocious, sedate, flagitious, dangerous, knockout, austere, heartbreaking, heartrending, solemn

   Antonyms:
   noncrucial, noncritical

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "life-threatening":

   fatal, deadly, lethal, mortal

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How to use life-threatening in a sentence?

1. Sapna Patel:

   If a patient has metastatic melanoma and is in her first or second trimester, it’s unlikely she ’ll be able to deliver to term without the melanoma becoming very life-threatening.

2. Former Arkansas Gov. Mike Huckabee:

   The fact that Hillary Clinton sent 'Top Secret' information from her personal email address is beyond outrageously illegal, it's life-threatening to members of our military and every American citizen. The same action, for anyone serving in the military, would mean a court-martial and prison sentence.

3. The National Weather Service:

   These extreme temperatures can be life-threatening.

4. Dom Raso:

   You can do all the research and data collection you want and you will find real quick that a life-threatening scenario can unfold at the blink of an eye and when you least expect it, especially for women – criminals are becoming more violent and more risky with their actions.

5. Dennis Feltgen:

   Swells from the storm could reach much of the east coast of Atlantic Canada by the end of the week and continue through the weekend. These swells could cause life-threatening surf and rip currents.