adjective

1 of 60

Bad / Attack

insidious - Proceeding in a gradual, subtle way, but with harmful effects

The effects of climate change are so insidious that they're not noticeable until polar bears have less ice to live on.

adjective

2 of 60

Bad / Hostile

infuriating - Making one extremely angry and impatient; very annoying

The high bills piling up were so infuriating that the Millers could do nothing but yell.

adjective

3 of 60

Bad / Delay

interminable - Endless (often used hyperbolically)

Victor dreaded going to the DMV, knowing he would spend an interminable amount of time there.

noun

4 of 60

Good / Smart

ingenuity - The quality of being clever, original, and inventive

Thomas Edison possessed so much ingenuity that he is considered the greatest inventor of all time.

adjective

5 of 60

Bad / Angry

irate - Angry and displeased

When Max was waiting in a car lane and he saw cars cut in, it made him irate.

adjective

6 of 60

Good / Strong

invincible - Too powerful to be defeated or overcome

Superman is able to fight for truth, justice and the American way because he is invincible against his enemies.

noun

7 of 60

Bad / Hurt

Url

injurious - Causing or likely to cause damage or harm.

The high temperature were injurious to the mango grove.

adjective

8 of 60

Bad / Strange

inscrutable - Difficult to understand

Martha always had an inscrutable smile, and Joe could never figure out if she loved or even liked him or not.

noun

9 of 60

Bad / Small

inkling - A slight knowledge or suspicion; a hint

Greg had an inkling that his neighbors were plotting against him when he overheard them mention his name.

verb

10 of 60

Bad / Aggressive

instigate - To cause an event or situation to happen by starting some actions

Fred was a bully in the school yard, and he always seemed to be instigating a fight or some other kind of trouble.

verb

See noun

11 of 60

Good / Exciting

intrigue - To arouse curiosity and interest by unusual, new, and fascinating qualities

Though Steve didn't understand much about the field of Artificial Intelligence, he was intrigued about all the talk he heard about it, and he wanted to learn more about it.

verb

12 of 60

Bad / Attack

inundate - To overwhelm (someone) with things or people to be dealt with

Reggie tried to sneak out for his lunch break before his boss could inundate him with more work.

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