1
Humidity
Moisture; Dampness; the amount of moisture in the air
2
Humiliate
To embarrass; to offend someone's pride or dignity
3
Hypothesis
An unproved theory
4
Illuminate
To provide with light; to make understandable; to clarify
5
Immaculate
Without spot or stain; free from error; without sin; pure
6
Immense
Very large; vast; enormous; boundless
7
Immortal
Living forever; everlasting; remembered or famous forever
8
Impediment
an obstruction of some kind; a speech disorder
9
Imperative
absolutely necessary; urgent
A command
10
Impertinent
deliberately disrespectful; rude and impolite