Lacking Seriousness or Gravity
This page is the CodyCross answer for the clue below from Tracking Time, Group 1041, Puzzle 1 (Alarm Clock).
Question is: Lacking Seriousness or Gravity
and the answer is: CAVALIER
Word Meaning:
CAVALIER — Lacking the proper care or concern for something important, reckless, rash, high-handed.
Definitions from Wiktionary.