Intolerable means too bad to be put up with. An intolerable delay, intolerable pain, the situation is intolerable.
It is a judgement rather than a measurement: calling something intolerable says it must stop rather than that it cannot be endured, and people endure intolerable things constantly. It is stronger than unacceptable and less formal than insupportable.
1adjectiveintolerableToo bad to be put up with.
“The noise from the building site next door became intolerable.”
intolerable is a quality.
Latin intolerabilis, in-, not, plus tolerare, to bear.
Latin
intolerābilis
Middle French
intolerable
Middle English
intolerable
English, today
intolerable
Middle English intolerable, borrowed from Middle French intolerable, from Latin intolerābilis. by surface analysis, in- + tolerable.
Etymology from Wiktionary, CC BY-SA