Ambiguous (Adjective) – Doubtful or uncertain especially from obscurity or indistinctness

“While the subways’s arrival be ambiguous, on thing about your commute is certain…”

https://www.huffingtonpost.com/2014/05/16/subway-strangers-commuting-be-nicer_n_5276529.

After reading the definition, I understood the word Ambiguous to mean not to be relatable.