unacclimatized

/ˌʌnəˈklaɪmətaɪzd/
adjective
  1. Not yet adapted or accustomed to a new climate, environment, or conditions.
    • The team was unacclimatized to the desert heat and needed frequent breaks.
    • The soldiers were unacclimatized to the jungle humidity and struggled to sleep.
    • Unacclimatized divers risk decompression sickness if they ascend too quickly.
Synonyms
What does "unacclimatized" mean? | whatsthatwordmean | whatsthatwordmean