| idyllic | Extremely happy, peaceful, or picturesque | |
| idiosyncrasy | A characteristic, habit, mannerism, or the like, that is peculiar to an individual | |
| ideological | Based on or relating to a particular ideology. | |
| iconoclast | A person who attacks or criticizes cherished beliefs or institutions | |
| husbandry | The care, cultivation, and breeding of crops and animals | |
| humdrum | lacking excitement or variety; boringly monotonous | |
| humbuggery | Deceptive or false talk or behavior | |
| hubris | Excessive pride or self-confidence | |
| homespun | Simple and unsophisticated, typically because of originating in the countryside | |
| holistic | Characterized by comprehension of the parts of something as intimately interconnected and understandable only by reference to the whole | |