odourless
Lacking any scent
Odourless means having no smell.
The British spelling of odorless: odourless gas, odourless and colourless.
Water is ideally odourless; carbon monoxide is dangerously so.
Without added smell
- unscentedHaving no added smell
- unperfumedHaving no added fragrance
- deodorizedStripped of unpleasant smell
- fragrancelessHaving no smell
smell-free · neutral · scentless · hypoallergenic · undetectable · imperceptible · faint · subtle
Unmixed, without impurities
- cleanFree of soil
- freshNewly made, not stale
- unadulteratedCompletely unmixed, genuine
- pristinePure and untouched
purified · refined · distilled · filtered · clear · untainted · uncontaminated · natural
Element seven, colorless gas
- heliumLightest noble gas
- argonUnreactive element eighteen
- radonRadioactive inert gas
- propaneFlammable hydrocarbon fuel
hydrogen · methane · colorless · undetectable · invisible · toxic · lethal · dangerous
Microbe-killing substance
- asepticFree from pathogens
- sanitizedCleansed of contaminants
- disinfectedFreed from harmful microorganisms
- germ-freeLacking any microorganisms
hygienic · clinical · surgical · cleanroom · pasteurized · sterilized · medical-grade · laboratory
fragrance-free
Without added smell
- unscentedHaving no added smell
- unperfumedHaving no added fragrance
- deodorizedStripped of unpleasant smell
fragranceless · smell-free · neutral · scentless · hypoallergenic · undetectable · imperceptible · faint · subtle · mild
pure
Unmixed, without impurities
- cleanFree of soil
- freshNewly made, not stale
- unadulteratedCompletely unmixed, genuine
pristine · purified · refined · distilled · filtered · clear · untainted · uncontaminated · natural · chemical-free
nitrogen
Element seven, colorless gas
propane · hydrogen · methane · colorless · undetectable · invisible · toxic · lethal · dangerous · detector
antiseptic
Microbe-killing substance
- asepticFree from pathogens
- sanitizedCleansed of contaminants
- disinfectedFreed from harmful microorganisms
germ-free · hygienic · clinical · surgical · cleanroom · pasteurized · sterilized · medical-grade · laboratory · pharmaceutical
glycerin
Viscous moisturizing compound
- isopropylBranched three-carbon alcohol
- acetoneVolatile organic solvent
- ethanolDrinkable volatile spirit
solvent · lubricant · primer · moisturizer · lotion · detergent · cleaner · adhesive · sealant
odourlesspungent
Sharply strong-smelling
overpowering · acrid · potent · rank · powerful
odourlessfragrant
Emitting pleasant smell
perfumed · sweet-smelling · fetid · foul-smelling · stinking
deodorant, odorous, odorless, deodorize, malodorous, odour, odors, deodorizer, deodorization