oblivious

From Middle English oblivious, from Latin oblīviōsus (“forgetful, oblivious”), formed from oblīvium (“forgetfulness, oblivion”) + -ōsus (“full of, overly, prone to”), from oblīvīscor (“to forget”).

oblivious (comparative more oblivious, superlative most oblivious)

(usually followed by to or of) Lacking awareness; unmindful; unaware, unconscious of.
Your grandmother is completely oblivious to her surroundings.
(dated) Forgetful.
He's hopelessly oblivious, always forgetting his appointments.

unaware

Chinese:
Mandarin: 不自覺 / 不自觉 (zh) (bùzìjué)
Catalan: inconscient (ca), ignorant (ca)
Czech: nevšímavý, nevědomý, nesoustředěný
Danish: uvidende
Dutch: onoplettend (nl)
Esperanto: nekonscia
Finnish: tietämätön (fi), välinpitämätön (fi)
French: ignorant (fr), inconscient (fr)
German: (rare) selbstvergessen, unaufmerksam (de), nicht bewusst, unbedacht (de), unbedarft (de)
Italian: inconsapevole (it), ignaro (it)
Japanese: 無自覚 (ja) (mujikaku)
Latin: obliviosus
Macedonian: не́свесен (nésvesen)
Maori: mākūare
Polish: nieświadomy (pl)
Portuguese: inconsciente (pt), sem noção
Spanish: inconsciente (es), desprevenido, ajeno (es), desconocedor (es)
Swedish: ovetande (sv)
Turkish: dikkatsiz (tr), habersiz (tr), ilgisiz (tr), ihmâlci, ihmâlkâr, lakayıt (tr)
Ukrainian: несвідо́мий (nesvidómyj)
Vietnamese: tỉnh bơ (vi)

failing to remember

English