indiminishable

From in- +‎ diminishable.

indiminishable (comparative more indiminishable, superlative most indiminishable)

1. Incapable of being diminished.

   Synonym: undiminishable

   • 1641 May, John Milton, Of Reformation Touching Church-Discipline in England: And the Cavvses that hitherto have Hindred it; republished as Will Taliaferro Hale, editor, Of Reformation Touching Church-Discipline in England (Yale Studies in English; LIV), New Haven, Conn.: Yale University Press, 1916, →OCLC:

     Have they not been told of late to check the common law , to slight and brave the indiminishable majesty of our highest court , the lawgiving and sacred parliament ?

• “indiminishable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.