Unaware, Unconcerned
This page is the CodyCross answer for the clue below from Train Travel, Group 707, Puzzle 3 (Long Journey).
Question is: Unaware, Unconcerned
and the answer is: OBLIVIOUS
Word Meaning:
OBLIVIOUS — (usually with to or of) Lacking awareness; unmindful; unaware, unconscious of.
Definitions from Wiktionary.