| Term | Definition |
| hegemony | leadership or predominant influence exercised by one nation over others, as in a confederation.(2)aggression or expansionism by large nations in an effort to achieve world domination |
| hiatus | a break or interruption in the continuity of a work, series, action(2)any gap or opening(3)the coming together, with or without break or slight pause, and without contraction, of two vowels in successive words or syllables, as in see easily |
| halcyon | calm; peaceful; tranquil(2)rich; wealthy; prosperous(3)happy; joyful; carefree(4)a mythical bird, usually identified with the kingfisher-have the power of charming winds and waves into calmness |
| homogeneous | all of the same or similar kind or nature(2)corresponding in structure because of a common origin |
| hubris | excessive pride or self-confidence; arrogance |
| iconoclast | a breaker or destroyer of images, esp. those set up for religious veneration(2)a person who attacks cherished beliefs, traditional institutions, etc., as being based on error or superstition |
| insouciant | free from concern, worry, or anxiety; carefree; nonchalant |
| incognito | having one's identity concealed, as under an assumed name, esp. to avoid notice or formal attentions |
| incontrovertible | not controvertible; not open to question or dispute; indisputable |
| inculcate | to implant by repeated statement or admonition; teach persistently and earnestly(2)to cause or influence (someone) to accept an idea or feeling (usually fol. by with) |
| interpolate | to introduce (something additional or extraneous) between other things or parts; interject; interpose; intercalate(2)to alter (a text) by the insertion of new matter, esp. deceptively or without authorization |
| invidious | calculated to create ill will or resentment or give offense; hateful(2)offensively or unfairly discriminating; injurious(3)causing or tending to cause animosity, resentment(4)Obsolete |
| inveigle | to entice, lure, or ensnare by flattery or artful talk or inducements(2)to acquire, win, or obtain by beguiling talk or methods |
| inchoate | not yet completed or fully developed; rudimentary(2)just begun; incipient(3)not organized; lacking order |
| interloper | to intrude into some region or field of trade without a proper license(2)to thrust oneself into the affairs of others |