invisible inknoun [ U ]
uk/ɪnˌvɪz.ɪ.bəl ˈɪŋk/us/ɪnˌvɪz.ɪ.bəl ˈɪŋk/ink that cannot be seen until it is treated with chemicals or heat:
It's a secret message written in invisible ink.
Thesaurus: synonyms and related words
Paints, dyes & pigments
- colourway
- distemper
- dye
- emulsion
- flaxseed oil
- glossy
- Indian ink
- ink
- inky
- poster paint
- primer
- propanone
- rinse
- satin
- sienna
- tint
- toner
- warpaint
- white spirit
- whitewash
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