What does oilier mean?
“Oilier” is the comparative form of “oily,” an adjective with literal and figurative uses. Literally, it describes something that has more oil on it, is more greasy, or is more slippery because of an oily coating. Figuratively, it can describe a person whose manner is especially smooth, flattering, or crafty, usually with a negative implication. For example, an engine may become oilier when a seal deteriorates, while a politician may make oilier promises in an attempt to sound reassuring. The word is useful because its comparative form allows writers and speakers to describe a developing increase in greasiness, slickness, or insincerity, rather than merely identifying those qualities in general.
More covered or coated with oil, or more slippery or greasy because of oil.
"The mechanic wiped the oilier section of the engine cover before inspecting it."
This is the literal and most common use of the comparative form.
More excessively smooth, flattering, or crafty in manner.
"He became more oilier and persuasive as he tried to win the negotiation."
This figurative use is generally negative or critical.
The word oil comes through Old English from Latin oleum, a root that also survives in oleic and petroleum.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of oilier
The adjective belongs to a family based on “oil,” which comes through Old English from Latin oleum, a word of uncertain ultimate origin. Latin oleum also underlies related forms such as oleic and contributes to the history of petroleum. The suffix in “oilier” marks the comparison of the adjective “oily.”
Related word forms
How oilier is actually used
The literal sense is common in British and US English. The figurative sense is typically critical, especially when describing a person's manner as excessively flattering or untrustworthy.
Easily confused with oilier
“Oily” is the base adjective, while “oilier” is its comparative form, meaning more oily.