| indefinitely | 不明確に |
| independently | 独立して |
| indirectly | 間接的に |
| individually | 個人的に |
| inevitably | 必然的に |
| infinitely | 無限に |
| informally | 非公式に |
| initially | 初めに |
| instantly | 直ちに |
| intentionally | 故意に |
| interestingly | 面白いことに |
| internally | 内部で |
| internationally | 国際的に |
| invariably | いつも |
| irrationally | 不合理に |
| kindly | 親切な/に |
| knowingly | わざと |
| largely | 大部分は |
| lastly | 最後に |
| lately | 最近 |
| legally | 法律的に |
| lightly | 軽く |
| likely | ありそうな、たぶん |
| literally | 文字通りに |
| lively | 元気な |
| locally | 局地的に |
| logically | 論理的に |
| lonely | 孤独な |
| loudly | 大声で |
| lovely | 美しい |
| luckily | 幸運にも |
| mainly | 主に |
| manly | 男らしい |
| manually | 手動で |
| mechanically | 機械的に |
| mentally | 精神的に |
| merely | ただ～だけの |
| merrily | 陽気に |
| mildly | 穏やかに |
| minimally | 最小限に |
| miraculously | 奇跡的に |
| miserably | みじめに |
| mistakenly | 誤って |
| moderately | 適度に |
| modestly | 謙虚に |
| momentarily | 瞬間的に |
| monthly | 月1回の、毎月 |
| morally | 道徳的に |
| mostly | 大部分は |
| mutually | お互いに |
語尾が「-ly」で終わる英単語一覧
