undiminishable

== English == === Etymology === From un- +‎ diminishable. === Adjective === undiminishable (comparative more undiminishable, superlative most undiminishable) Unable to be diminished. 1957, J. D. Salinger, "Zooey", in, 1961, Franny and Zooey, 1991 LB Books edition, page 52, […] could have disfigured or coarsened his bounteous good looks in a day or a second. But what was undiminishable […] was an authentic esprit superimposed over his entire face […]