Harsh-Tasting; Acrimonious, Cold-Hearted
This page is the CodyCross answer for the clue below from The 1950s, Group 1801, Puzzle 5 (Transistor Radio).
Question is: Harsh-Tasting; Acrimonious, Cold-Hearted
and the answer is: BITTER
Word Meaning:
BITTER — Having an acrid taste (usually from a basic substance).
Definitions from Wiktionary.