different between unfirable vs untirable

English

Etymology

un- +? firable

Adjective

unfirable (comparative more unfirable, superlative most unfirable)

1. Incapable of being fired (in various senses).
   • 2007, Phillip F. Schewe, The Grid

     Moses was practically unfirable; he was to government construction what J. Edgar Hoover had been to crime enforcement.

Anagrams

• funebrial, unfriable

English

Etymology

un- +? tirable

Adjective

untirable (comparative more untirable, superlative most untirable)

1. Incapable of being tired; never tiring.
   • c. 1607, William Shakespeare, Timon of Athens, Act I, Scene 1,^[1]

     A most incomparable man, breathed, as it were,

     To an untirable and continuate goodness […]

   • 1848, John Stuart Mill, Principles of Political Economy, London: John W. Parker, Volume I, Book II, Chapter 6, §4, pp. 313-314,^[2]

     The Germans […] plod on from day to day, and year to year—the most patient, untirable, and persevering of animals.

   • 1965, Thom Gunn, “Misanthropos” IX (retitled as “Memoirs of the World” in Poems 1950-1966: A Selection, London: Faber & Faber, 1969, p. 41,^[3]

     […] I laboured

     to become a god of charm,

     an untirable giver.

Synonyms

• tireless

Anagrams

• Butlerian, untriable