Thesaurus.com
Dictionary.com
Showing results for insider. Search instead for insikter.
Definitions

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.

Companies typically restrict insider sales shortly before a financial quarter ends.

From The Wall Street Journal • Apr. 8, 2026

Yet they are not doing so: The insider buy percentage for stocks in the energy sector fell in March to 17.5% from February’s 19.1%.

From MarketWatch • Apr. 6, 2026

On Sunday he faces Peter Magyar, a former insider in Orban's party Fidesz, who broke with him two years ago to found the centre-right Tisza party.

From BBC • Apr. 6, 2026

Magyar, a former government insider turned critic, is offering voters a radical break from Orban's self-described "illiberal" system, vowing to crack down on corruption and improve public services.

From Barron's • Apr. 3, 2026

Whether or not their deaths were intentional, these two men had done what no other sumo insider had previously done: named names.

From "Freakonomics: A Rogue Economist Explores the Hidden Side of Everything" by Steven D. Levitt