IPA: /ˌʌnəˈnɛsθəˌtaɪzd/
KK: /ʌnəˈnɛsθəˌtaɪzd/
Not having received anesthesia, which is a medication used to prevent pain during medical procedures.
The patient was unanesthetized during the minor procedure, which made it quite uncomfortable for him.
Unanesthetized → It is formed from "un-" (meaning not), "anesthetize" (from Greek "anesthetos", meaning without sensation), and the suffix "-ed" (indicating a state or condition). The word describes a state of not being under anesthesia, hence being fully aware or sensitive to sensations.
Think of 'not' ('un-') being in a state of 'without sensation' ('anesthetize') — that's why unanesthetized means not under anesthesia.