unhintable

English

Etymology

un- +‎ hintable

Adjective

unhintable (comparative more unhintable, superlative most unhintable)

1. That must not be hinted at; unmentionable.
   • 1955, John Wyndham, The Chrysalids:

     With the word 'baby' unmentionable and unhintable, we all had to go on pretending that my mother was in bed for some slight cold, or other indisposition.

   • 2015, Peter Dickinson, Skeleton-in-Waiting:

     The whole visit was tense with Soppy's unhintable doings.