v. dispute or contradict (often in an insulting way); challenge; gainsay

Our treasurer was furious when the finance committee's report impugned the accuracy of his financial records and recommended that he take bonehead math. 

v. to deny

She was to honest to gainsay the truth of the report. 

n. frugality; thrift; agriculture

He accumulated his small fortune by diligence and husbandry.

v. husband 

n. longing, urge

She had a yen to get away and live on her own for awhile. 

v. stimulate by shock; stir up; revitalize

News that the prince was almost at their door galvanized the ugly stepsisters into a frenzy of combing and primping. 

v. romp; skip about; leap playfully

Watching the children gambol in the park, Betty marveled at their youthful energy and zest.

also n. 

v. teach

In an effort to inculcate religious devotion, the officials ordered that the school day begin with the singing of a hymn. 

adj. tireless 

Although the effort of taking out the garbage exhausted Wayne for the entire morning, when it came to partying, he was indefatigable.

adj. not able to be erased

The indelible ink left a permanent mark on my shirt.  Young Bill Clinton's meeting with Pres. Kennedy made an indelible impression on the youth. 

v. make secure against loss; compensate for loss.

The city will indemnify all home owners whose property is spoiled by this project. 

n. poverty

adj., n. indigent- poor, destitute

Neither the economists, nor the political scientists have found a way to wipe out the inequities of wealth and eliminate indigence from our society. 

adj. unutterable; cannot be expressed in speech.

Such ineffable joy must be experienced; it cannot be described. 

adj. irresistable; not to be escaped

He felt that his fate was ineluctable and refused to make any attempt to improve his lot. 

n. assuming a false identity; masquerade

She was imprisoned for her imposture of a doctor. 

adj. thriftless

He was constantly being warned to mend his improvident ways and begin to "save for a rainy day."

n. improvidence 

v. drive or force onward

A strong feeling of urgency impelled her; if she failed to finish the project right then, she knew she would never see it done. 

adj. unchangeable

All things change overtime; nothing is immutable. 

adj. unable to be doubted; unquestionable

Auditioning for the chorus line, Molly was an indubitable hit; the director fired the leading lady and hired Molly in her place! 

adj. domineering; haughty

Jane rather liked a man to be masterful, but Mr. Rochester seemed so bent on getting his own way that he was actually imperious!

n. imperiousness 

adj. healthy

After a brief illness, he was soon hale. 

v. abdominal

We shall now examine the ventral plates of this serpant, not the dorsal side. 

adj. choosing at random; confused

She disapproved of her son's indiscriminate television viewing and decided to restrict him to educational programs. 

adj. modest

He is so unassuming that some people fail to realize how great a man he really is. 

adj. lazy

Couch potatoes lead an indolent life lying back in their Lazyboy recliners watching T.V.

n. indolence 

adj. matchless; not able to be imitated.

We admire Auden for his inimitable use of language; he is one of a kind. 

adj. unattractive

During adolescence many attractive young people somehow acquire the false notion that their appearance is unprepossessing. 

adj. lacking caution; injudicious

It is imprudent to exercise vigorously and become overheated when you are unwell. 

adj. without feeling; imperturbable; stoical

Refusing to let the enemy see how deeply shaken he was by his capture, the prisoner kept his face impassive. 

adj. obscure and mysterious; occult

It is strange to consider modern chemistry originated in the hermetic teachings of a known alchemist. 

v. write, compose

Cyrano indited many letters for Christian.