Synonyms of untreated

untreated

adjective

ˌən-ˈtrē-təd 

as in crude

being such as found in nature and not altered by processing or refining

untreated wool

Synonyms & Similar Words

• crude
• unprocessed
• natural
• raw
• native
• unrefined
• undressed
• in the raw
• undeveloped
• in the rough
• unfinished
• rude
• uncooked
• unpolished
• impure
• unfiltered
• semifinished
• rough-hewn

Antonyms & Near Antonyms

• treated
• dressed
• processed
• refined
• pure
• purified
• filtered

Example Sentences

Recent Examples of untreated

For untreated, unpainted wood railings, combine 4 tablespoons of dish soap with 2 cups of bleach and a quart of warm water. — Karen Brewer Grossman, Southern Living, 18 July 2026

While many healthy adults recover without long-term complications, symptoms can persist for several weeks if left untreated. — Gary Occhiogrosso, Forbes.com, 17 July 2026

Later life is when social isolation, air pollution and untreated vision loss compound existing vulnerabilities. — Samantha Agate, Fort Worth Star-Telegram, 16 July 2026

But an overpopulation of these little critters can trigger irritation, inflammation and even more serious eye conditions if left untreated. — Alyssa Goldberg, USA Today, 16 July 2026