Learn through Latin roots 6

inflexible (adj.)

unwilling to make even the slightest change in your attitudes, plans etc

No compromise is possible when both sides remain inflexible.

Ingratitude (n.)

the quality of not being grateful

Valerie refuses to let me see her notes, despite the fact that I have always lent her mine. Did you ever hear of such ingratitude?

inhospitable (adj.)

an inhospitable place is difficult to live or stay in because the weather conditions are unpleasant or there is no shelter

When the visitors come to our school, we should make them feel at home; otherwise they will think we are inhospitable.

insoluble (adj.)

an insoluble problem is or seems impossible to solve

Scientists are finding solutions too many problems that formerly seemed insoluble.

irreconcilable (adj.)

irreconcilable positions etc are so strongly opposed to each other that it is not possible for them to reach an agreement

After Romeo and Juliet died, their families, who had been irreconcilable enemies, became friends.

irrelevant (adj.)

not useful or not relating to a particular situation, and therefore not important

Stick to the topic; don’t make irrelevant remarks