in·​se·​cure | \ ˌin-si-ˈkyu̇r How to pronounce insecure (audio) \

Definition of insecure

1 : not confident or sure : uncertain feeling somewhat insecure of his reception
2 : not adequately guarded or sustained : unsafe an insecure investment
3 : not firmly fastened or fixed : shaky the hinge is loose and insecure
4a : not highly stable or well-adjusted an insecure marriage
b : deficient in assurance : beset by fear and anxiety always felt insecure in a group of strangers

Keep scrolling for more

Other Words from insecure

insecurely adverb
insecureness noun
insecurity \ ˌin-​si-​ˈkyu̇r-​ə-​tē How to pronounce insecurity (audio) \ noun

Synonyms & Antonyms for insecure


lax, loose, loosened, relaxed, slack, slackened, unsecured


taut, tense, tight

Visit the Thesaurus for More 

Examples of insecure in a Sentence

I feel shy and insecure around strangers. One of the building's rear doors was insecure. The country's borders remain insecure.
See More

Recent Examples on the Web

Despite her claim of being insecure, Teigen appears to be embracing her new body during her lavish vacation. Katherine Lam, Fox News, "Chrissy Teigen shows off post-baby body, stretch marks in candid posts," 31 July 2018 Your digital life is at once permanent, etched in ones and zeros, and perilously insecure, capable of being leaked in the next devastating hack. Jacob Silverman, Longreads, "Private Telegram, Public Strife," 3 July 2018 And for security hawks who want to stream local music files, Sonos recently lessened its reliance Microsoft’s insecure and outdated SMBv1 file sharing protocol. Jeff Dunn, Ars Technica, "The Ars Holiday Gift Guide 2018—good tech for the home and home office," 19 Nov. 2018 The whole piece is tethered to the floor almost casually, with string wrapped, just once, around a rock, reminding us how insecure our mainstays can be. Gayle Clemans, The Seattle Times, "‘The Veil’ exhibition at Bridge Productions spans ideas of what’s seen and unseen," 7 Aug. 2018 After years of feeling insecure about it, Chrissy Metz finally wore a swimsuit on vacation. Alison Edmond, Glamour, "Chrissy Metz Is Finally Doing Whatever She Wants," 9 Oct. 2018 At one point in the film, the Prince of Wales—an insecure and violent madman intent on proving his strength to his father, the king—strings up a nobleman at the gate of a castle before slicing open his stomach. Peter Martin, Popular Mechanics, "How They Made All the Blood and Guts of 'Outlaw King'," 9 Nov. 2018 The benefits of onsite gardens go beyond fresh food (which is a big deal in food-insecure communities). Patrick Sisson, Curbed, "How urban farms in New York schools are raising food to fight inequality," 27 Sep. 2018 In January a bipartisan group of senators introduced a bill to ban insecure paperless voting machines. Jonathan M. Gitlin, Ars Technica, "Frozen machines, 243-percent turnout, and other woes in Georgia voting," 8 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'insecure.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of insecure

1649, in the meaning defined at sense 1

History and Etymology for insecure

Medieval Latin insecurus, from Latin in- + securus secure

Keep scrolling for more

Learn More about insecure

Statistics for insecure

Last Updated

2 May 2019

Look-up Popularity

Time Traveler for insecure

The first known use of insecure was in 1649

See more words from the same year

Keep scrolling for more

More Definitions for insecure



English Language Learners Definition of insecure

: not confident about yourself or your ability to do things well : nervous and uncomfortable
: not certain to continue or be successful for a long time
: not locked or well protected


in·​se·​cure | \ ˌin-si-ˈkyu̇r How to pronounce insecure (audio) \

Kids Definition of insecure

1 : not safe or secure insecure property
2 : not confident He's insecure about his talents.


in·​se·​cure | \ ˌin(t)-si-ˈkyu̇(ə)r How to pronounce insecure (audio) \

Medical Definition of insecure

: characterized by or causing emotional insecurity an insecure childhood

Keep scrolling for more



Legal Definition of insecure

: having a good faith belief that the prospect of receiving payment or performance from a party with whom one has contracted is impaired

Other Words from insecure

insecurity noun

Keep scrolling for more

More from Merriam-Webster on insecure

Rhyming Dictionary: Words that rhyme with insecure

Thesaurus: All synonyms and antonyms for insecure

Spanish Central: Translation of insecure

Nglish: Translation of insecure for Spanish Speakers

Comments on insecure

What made you want to look up insecure? Please tell us where you read or heard it (including the quote, if possible).


a sum of money that is sent as a payment

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!