不足（ふそく、fusoku）
- shortage

The Japanese word 不足, pronounced ふそく (fusoku), primarily means "lack," "shortage," "insufficiency," or "deficiency." It describes a situation where something is not present in the required amount or to the necessary extent. This can apply to a wide range of things, from physical resources like food or money to abstract concepts like information or ability. The meaning focuses on what is missing or inadequate. The word can be used as a noun or as a no-adjective (adjective that acts like a noun). It is often used to express a state of being insufficient or lacking something. The degree of the [不足] can vary from mild to severe, depending on the context.

⚫︎ 食料不足 Translation: Food shortage ⚫︎ 経験不足 Translation: Lack of experience ⚫︎ 資金不足のため、プロジェクトは中止になった。 Translation: The project was cancelled due to a shortage of funds.

不足 is commonly used in both formal and informal contexts. ⚫︎ It's versatile enough to be used in business settings to discuss resource constraints or in everyday conversation to describe a personal lack of something. ⚫︎ When using it in a sentence, it often directly precedes the thing that is lacking. ⚫︎ As a no-adjective, you can directly use it to modify nouns (e.g., 不足な部分 - insufficient part). ⚫︎ 不足している means "is lacking" or "is insufficient".

⚫︎ 不足 is typically written in kanji. ⚫︎ The reading is ふそく in hiragana. ⚫︎ There are no common variations in the okurigana.

⚫︎ 欠乏（けつぼう） - deficiency, lack ⚫︎ 欠如（けつじょ） - absence, lack ⚫︎ 足りない（たりない） - insufficient, not enough ⚫︎ 不足分（ふそくぶん） - shortfall, deficit

⚫︎ 十分（じゅうぶん） - sufficient, enough ⚫︎ 豊富（ほうふ） - abundant, plentiful ⚫︎ 余る（あまる） - to be left over, to have a surplus

彼は睡眠不足で、いつも眠そうだ。 ・Translation: He is always sleepy because of a lack of sleep. ・Explanation: This sentence describes someone who is tired due to not getting enough sleep. The word 不足 highlights the deficiency in sleep.

このレポートには、情報が不足している。 ・Translation: This report lacks information. ・Explanation: This sentence indicates that the report is missing some necessary details or data, emphasizing the 不足 of information.

The word 不足 is formed from the following: ⚫︎ 不 (fu) - a negative prefix, meaning "not" or "un-" ⚫︎ 足 (soku) - meaning "sufficiency," "enough," or "to be sufficient". Therefore, 不足 literally means "not enough" or "insufficiency."