Meaning

adjective incapable of or resistant to bending

adjective incapable of compromise or flexibility

adjective incapable of adapting or changing to meet circumstances

originEtymology tree Proto-Indo-European *Hreyǵ-der. Proto-Italic *rigēō Latin rigeō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin rigidusder. Middle English rigide English rigid From Middle English rigide, from Latin rigidus (“stiff”), from rigeō (“to be stiff”). Compare rigor. Merged with Middle English rigged, rygged, rugged (“upright like a spine, rigid”, literally…

Etymology from Wiktionary, CC BY-SA 3.0