Inflatable means able to be filled with air to take its shape. An inflatable boat.
The air does the work of a structure, which is why the thing packs into nothing. An inflatable boat is stable and nearly unsinkable, which is why lifeboats use them.
1adjectiveinflatableAble to be filled with air to take its shape.
“The inflatable dinghy fitted into the boot of a small car.”
inflatable is a quality.
Proto-Indo-European
*bʰleh₁-
Latin
īnflātus
English
inflate
English, today
inflatable
From inflate + -able. inflate comes from Latin īnflātus, perfect passive participle of īnflō, see -ate. a doublet of inblow.
Etymology from Wiktionary, CC BY-SA