無防備|むぼうびmuboubi[2]nakadaka (mid-high)

1. na-adjective, no-adjectivedefenseless; defenceless; unprotected; vulnerable

• Relatedむき出しむきだしNeutralRefers to something bare and exposed with nothing covering it, or emotions shown openly; 「無防備」 stresses the lack of protection or preparedness.
• Related露あらわWrittenWritten word for being exposed or made public, as in 「敵意をあらわにする」; 「無防備」 focuses on lacking defenses.
• Antonym警戒けいかいNeutralVigilance and staying on guard against danger; the opposite of 「無防備」, which describes being off guard and unprepared.
• Antonym防御ぼうぎょWrittenWritten word for warding off enemy attacks and defending oneself; the direct opposite of 「無防備」.
• Antonym防備ぼうびWrittenWritten word for defensive preparations against enemies or disasters; the direct opposite of 「無防備」, which means having no such preparations.

Use 「無防備」 for lacking defenses or being unprepared, as in 「無防備な姿」. Use 「むき出し」 for things lying bare and exposed or emotions on open display. For being on guard or making defensive preparations, choose 「警戒」 or 「防備」; 「防御」 covers warding off attacks.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 外敵がいてきの進入しんにゅうや攻撃こうげき、防災ぼうさい、防疫ぼうえき、情報漏洩じょうほうろうえいなどに対たいする準備じゅんびがないこと。
2. あられもない姿すがたや体からだの部位ぶいなどをかくそうとする警戒心けいかいしんがないこと。