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Definitions

insecure

[in-si-kyoor] / ˌɪn sɪˈkyʊər /
ADJECTIVE
uncertain, worried
Synonyms
STRONGEST
afraid anxious apprehensive hesitant shaky touchy troubled unsure uptight
WEAK
Delphic choked diffident hanging by thread jumpy on thin ice questioning touch and go unassured unconfident unpoised up in the air vague
Antonyms
STRONGEST
at ease calm certain collected composed cool definite happy peaceful quiet sure unafraid unwavering unworried
WEAK
confident guarded protected safe secure sound
ADJECTIVE
dangerous, precarious
Synonyms
STRONGEST
frail immature shaky unreliable unstable vulnerable wobbly
STRONG
unsafe
WEAK
defenseless exposed fluctuant hazardous insubstantial loose open to attack perilous rickety rocky rootless unguarded unprotected unshielded unsound unsteady vacillating wavering weak
Antonyms
STRONGEST
firm stable steady strong unshaky
WEAK
certain confident guarded protected safe secure sound sure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She may even be feeling insecure in the relationship.

From MarketWatch • Apr. 13, 2026

It is designed to weed out the insecure and trigger-happy, the reckless hotheads with something to prove.

From Slate • Apr. 13, 2026

"The problem for us is that if we are asked to join the war on the Saudi side, our entire Western border will be largely insecure," says Siddiqi.

From BBC • Mar. 30, 2026

A world without rules is an insecure world where anyone can be the next victim.

From The Wall Street Journal • Mar. 30, 2026

Sis Heyster also writes that girls my age feel very insecure about themselves and are just beginning to discover that they’re individuals with their own ideas, thoughts and habits.

From "The Diary of a Young Girl" by Anne Frank

Vocabulary lists containing insecure

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Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

in-

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Uh-Oh: Synonyms for "Dangerous"

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