Definitions

unscrupulous

[uhn-skroo-pyuh-luhs] / ʌnˈskru pjə ləs /

ADJECTIVE

immoral

Synonyms

STRONGEST

corrupt crafty crooked deceitful dishonest illegal petty ruthless selfish shady shameless underhanded unethical venal

WEAK

arrant base casuistic conscienceless degraded degrading disgraceful dishonorable down and dirty exploitative improper low-down mercenary perfidious questionable recreant scandalous scheming self-seeking shifty sinister slippery sly two-faced unconscientious unconscionable underhand unfair unprincipled unworthy wicked wrongful

Antonyms

STRONGEST

aboveboard decent ethical fair frank good honest honorable kind lawful moral open principled right trustworthy truthful upright

WEAK

scrupulous

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 all leads you to assume that our mystery 79-year-old must be well connected, unscrupulous in his personal dealings, and yes, pretty fat.

From Slate • Jun. 23, 2026

The Chartered Trading Standards Institute said that while the mis-selling or misdescription of fish was not a widespread issue it acknowledged "there are still some unscrupulous businesses".

From BBC • Apr. 30, 2026

“Anytime there’s uncertainty, unscrupulous people take advantage of that,” O’Saben said.

From MarketWatch • Apr. 9, 2026

I do not want my brother to be taken advantage of by an unscrupulous attorney who might promise to help him qualify for Medicaid.

From MarketWatch • Mar. 26, 2026

After Whitehorn’s death, his part-white, part-Cheyenne widow, Hattie, had married an unscrupulous white man named LeRoy Smitherman.

From "Killers of the Flower Moon" by David Grann

Vocabulary lists containing unscrupulous

The Catcher in the Rye

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Power Prefix: un-

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Grade 10, List 6

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