Standard Lemma guide

underseal

noun · verb · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

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Pronunciation

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1

noun

Meaning 1

A thick, resilient coating applied to the underbody or chassis of an automobile to protect against damage from small stones, etc, which would rapidly chip ordinary paint and allowing rusting to begin.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To coat (the underbody or chassis of a vehicle) with underseal.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: undercoat

Antonyms: none provided

Broader terms: seal

History

Etymology

Etymology tree Proto-Indo-European *h1én Proto-Indo-European *h1entér Proto-Indo-European *(H)n̥dhí Proto-Indo-European *-ér Proto-Indo-European *(H)n̥dhér Proto-Germanic *under Proto-West Germanic *undar Old English under- Middle English under- English under- Proto-Indo-European *sek- Proto-Indo-European *-nóm Proto-Italic *seknom Latin signum Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -lum Latin sigillum Anglo-Norman seelbor. Middle English sel English seal English underseal From under- + seal.