appallest

Verb

appall (third-person singular simple present appalls, present participle appalling, simple past and past participle appalled)

1. (transitive) To fill with horror or indignation; to dismay.
   • The evidence put forth at the court appalled most of the jury.

   Synonyms:

   terrify, daunt, frighten, scare, depress, affright, alarm, dismay, fray, grill

2. (obsolete, transitive) To make pale; to blanch.
   • Thanſwere that ye made to me my dere
     whañ I did ſewe for my poore hartes redreſſe
     hathe ſo apalld my countenaunce […]c. 1527–1542, Thomas Wyatt, “Thanſwere that ye made to me my dere”, in Egerton MS 2711, page 63r
3. (obsolete, transitive) To weaken; to reduce in strength
   • wine of it owne nature will not congeale and freeze, onely it will loose the strength, and become appalled in extremitie of cold.1601, C[aius] Plinius Secundus [i.e., Pliny the Elder], “(please specify |book=I to XXXVII)”, in Philemon Holland, transl., The Historie of the World. Commonly Called, The Naturall Historie of C....
4. (intransitive, obsolete) To grow faint; to become weak; to become dismayed or discouraged.
5. (intransitive, obsolete) To lose flavor or to become stale.