Silly Like a Jester
This page is the CodyCross answer for the clue below from London, Group 495, Puzzle 2 (Oyster Card).
Question is: Silly Like a Jester
and the answer is: FOOLISH
Word Meaning:
FOOLISH — (of a person) Lacking good sense or judgement as a general trait; unwise; stupid.
Definitions from Wiktionary.