INFALLIBILITY, INFALLIBLE, INFALLIBLY
ADJECTIVES
► ILLABILE not liable to slip, fall, or err; infallible → 1740 obs.
► INERRABLE incapable of erring; infallible → 1613
► INFAILABLE unfailing; reliable; infallible → 1561 obs.
► INFALLID not liable to fail; infallible → 1635 obs.
► UNFAILABLE infallible; unfailing → 1450 obs.
► UNFALLIBLE infallible → 1529 obs.
► UNFALLID infallible → 1641 obs.
ADVERBS
► INERRABLY in an inerrable manner; infallibly → 1672
► UNFALLIBLY infallibly → 1542 obs.
NOUNS
► ILLABILITY the quality of being ‘illabile’ → 1740 obs.
► INERRABILITY freedom from liability to err; infallibility → 1627
► INFALLIBILITY a being infallible or exempt from liability to err → 1611
► INFALLIBLENESS a being infallible → 1586
NOUNS – PERSON
► SANS-APPEL an infallible person; one whose decision is law → 1881 (Bk.)
► TIN GOD a person who considers himself or herself infallible and tries to impose judgements, beliefs, standards of behaviour, etc., on subordinates
Lexicophilia 