insecure

adjective

in·​se·​cure ˌin-si-ˈkyu̇r 

1

a

: deficient in assurance : beset by fear and anxiety

always felt insecure in a group of strangers

b

: not highly stable or well-adjusted

an insecure marriage

2

: not confident or sure : uncertain

feeling somewhat insecure of his reception

3

: not adequately guarded or sustained : unsafe

an insecure investment

4

: not firmly fastened or fixed : shaky

the hinge is loose and insecure

5

: unable to reliably afford or access what is needed to meet one's basic needs

families that are housing insecure [=that are at risk of losing their housing]

see also food insecure

insecurely adverb

insecureness noun

Word Icons

Synonyms

• lax
• loose
• loosened
• relaxed
• slack
• slackened
• unsecured

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.

Recent Examples on the Web

Delaying Or Delegating High-Impact Decisions An insecure startup founder or leader will often delay or delegate high-stakes choices, fearing blame. —Expert Panel®, Forbes.com, 3 June 2025

The Studio, which casts Rogen as a well-meaning but deeply insecure executive who’s suddenly promoted to studio head, isn’t exactly a revolutionary idea. —Judy Berman, Time, 3 June 2025

Schwartzman’s character, Souper—the poorest of the group, whose nickname is short for soup kitchen—gives off an insecure, sycophantic vibe that reminds me of an acolyte from Musk’s text messages. —Charlie Warzel, The Atlantic, 30 May 2025

Similarly, Kiki vacillates between a broad figure of oblivious privilege, not that far removed from Moore’s The Big Lebowski heiress, and a scrapper who feels just as insecure in this place as either sister. —Alan Sepinwall, Rolling Stone, 22 May 2025

Word History

Etymology

Medieval Latin insecurus, from Latin in- + securus secure

First Known Use

1646, in the meaning defined at sense 2

Phrases Containing insecure

• food insecure

Kids Definition

insecure

adjective

in·​se·​cure ˌin(t)-si-ˈkyu̇(ə)r 

1

: not confident or sure : uncertain

felt insecure about their response

2

: not well protected : not safe

insecure property

3

: not firmly fastened : loose

an insecure hinge

4

: lacking self-assurance

insecure people

insecurely adverb

insecurity

-ˈkyu̇r-ət-ē 

noun

Medical Definition

insecure

adjective

in·​se·​cure ˌin(t)-si-ˈkyu̇(ə)r 

: characterized by or causing emotional insecurity

an insecure childhood

Legal Definition

insecure

adjective

in·​se·​cure

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

insecurity noun