insider

[in-sahy-der] / ˌɪnˈsaɪ dər /

NOUN

accessory

Synonyms

STRONG

abettor accomplice aid aide assistant associate colleague confederate conspirator helper partner plant ringer shill stall subordinate

WEAK

co-conspirator

Antonyms

STRONG

antagonist boss enemy foe leader opponent superior

WEAK

principal

NOUN

accomplice

Synonyms

STRONGEST

aide associate co-conspirator collaborator conspirator

STRONG

abettor accessory aid ally assistant colleague confederate partner plant stall

Antonyms

STRONG

antagonist enemy

WEAK

adversary opponent

NOUN

cognoscente

Synonyms

STRONG

connoisseur critic expert judge specialist

Antonyms

STRONG

ignoramus

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.

“It’s a great partnership and makes Jen very happy,” one insider recently told People magazine.

From MarketWatch • Jun. 9, 2026

DOJ is investigating former congressman George Santos for insider trading on Kalshi.

From MarketWatch • Jun. 3, 2026

Rocket Lab stock fell 15% to $122.39 on Monday, following a rally in May and significant insider sales.

From Barron's • Jun. 3, 2026

Canary now analyzes the predictive value of purchases or sales of shares from a given company insider.

From The Wall Street Journal • May 31, 2026

But even the way he says it, I can tell he is an insider in a way that few others are.

From "Challenger Deep" by Neal Shusterman

insider

Example Sentences

Related Words