This section is from the book "Hill's Manual Of Social And Business Forms: A Guide To Correct Writing", by Thos. E. Hill. Also available from Amazon: Hill's Manual Of Social And Business Forms: The How-To-Do-Everything Book Of Victorian America.
Grant - give, bestow, cede, confer, concede, sell, yield.
Grasp - grip, seize, catch.
Grateful - thankful, agreeable, delicious, pleasing.
Gratification - indulgence, happiness, enjoyment, fruition, pleasure.
Grave - slow, solemn, thoughtful, serious, important, sedate.
Greatness - size, bulk, grandeur, magnitude, immensity, dignity, power.
Greediness - ravenous, rapacity, voracity, covetousness, eagerness.
Grief - sadness, sorrow, distress, regret, melancholy, affliction, anguish.
Grieve - bemoan, bewail, afflict, lament, hurt, mourn, sorrow.
Group - cluster, collection, assemblage.
Grow-sprout, vegetate, proceed, increase.
Guarantee - warrant, vouch for, secure.
Guard - protect, defend, shield, watch.
Guess - suppose, conjecture, think, surmise, divine.
Guest - stranger, visitor, visitant.
Guide - lead, direct, conduct, control, instruct, regulate.
Guilty - depraved, wicked, sinful, criminal, debauched.
Hale - strong, sound, hearty, robust.
Handsome - fine, fair, beautiful, pretty, graceful, lovely, elegant, noble.
Happiness - contentment, luck, felicity, bliss.
Harass - tire, molest, weary, disturb, perplex, vex, torment.
Harbinger - messenger fore-runner, precursor.
Hard - near, close, unfeeling, inexorable, arduous, difficult, firm, hardy, solid.
Hardened - unfeeling, obdurate, insensible, callous.
Hardihood - boldness, presumption, audacity, effrontery, daring, bravery.
Hardly - barely, scarcely, with difficulty.
Hardship - affliction, oppression, grievance, injury.
Harm - evil, injury, damage, misfortune, hurt, ill, mishap.
Harmless - gentle, unoffending, inoffensive, innocent.
Harmony - unison, concord, accordance, melody, agreement.
Harsh - rough, stern, severe, rigorous, austere, morose.
Hasten - hurry, expedite, accelerate, quicken.
Hastiness - dispatch, speed, precipitancy, hurry, rashness.
Hasty - rash, angry, quick, passionate, cursory.
Hate - dislike, abjure, detest, abhor, loathe, abominate.
Hateful - odious, contemptible, execrable, detestable, abominable, loathsome.
Haughtiness - vanity, self-conceit, arrogance, pride, disdain.
Hazard - trial, venture, chance, risk, danger, peril.
Headstrong - self-willed, stubborn, forward, violent, obstinate, venturesome.
Heal - restore, cure, remedy. Healthy - well, sound, wholesome, salutary, salubrious.
Hear - harken, listen, watch, attend, overhear.
Hearty - sincere, zealous, warm, strong, cordial, ardent, healthy.
Heaviness - sorrow, gloom, dejection, weight, gravity.
Heedless - dilatory, thoughtless, negligent, remiss, careless, inattentive.
Heighten - raise, advance, improve, aggravate.
Heinous - wicked, sinful, flagrant, atrocious.
Help - provide, serve, assist, aid, relieve, support, succor.
Hence - from, thence, so, accordingly, therefore, wherefore, consequently.
Heroic - bold, noble, brave, fearless, valiant, courageous, intrepid.
Heroism - valor, boldness, courage, bravery, gallantry, fortitude.
Hesitate - pause, falter, wait, delay, doubt, demur, stammer.
Hidden - obscure, mysterious, secret, covert, concealed.
Hideous - awful, frightful, horrible, ghastly, grim, grisly.
Hilarity-jollity, joviality, mirth, merriment, cheerfulness, gayety.
Hinder - interfere, impede, embarrass, retard, prevent, oppose, stop, thwart, obstruct.
Hold - keep, occupy, maintain, retain, detain, grasp, possess.
Honesty - honor, fidelity, frankness, integrity, probity, purity, justice, sincerity, rectitude, uprightness, truthfulness.
Honor - exalte dignify, respect, adorn, revere, esteem, venerate, reverence.
Hope - desire, belief, trust, confidence, expectation, anticipation.
Hopeless - desponding, dejected, despairing.
Horrible - dreadful, terrible, terrific, fearful, frightful, awful.
Hostile - unfriendly, contrary, opposite, repugnant.
Hostility - enmity, opposition, animosity, illwill, unfriendliness.
House - domicile, dwelling, home, habitation, family, race, quorum.
However - notwithstanding, but, nevertheless, yet, still.
Humble - meek, lowly, subdued, submissive, modest, unpretending, unassuming.
Hurry - hasten, expedite, precipitate.
Hurtful - annoying, injurious, detrimental, mischievous, pernicious, prejudicial.
Hypocrisy - dissimulation, pretence, deceit.
Idea - notion, thought, conception, imagination, perception.
Idle - unoccupied, unemployed, inactive, indolent, still, lazy, slothful.
Ignorant - untaught, unskilled, uninformed, unlettered, illiterate, unlearned.
Illness - sickness, disorder, disease, malady.
Illusion - falsity, mockery, deception.
Imagine - think, suppose, fancy, conceive, deem, contrive, appre-hend.
Imbecility - weakness, languor, feebleness, infirmity, debility, impotence.
Imitate - follow, copy, mimic.
Immaterial - unimportant, insignificant, inconsiderable, inconsequential, uncorporeal, spiritual, unsubstantial, unconditioned.
Immense - vast huge, enormous, prodigious, unlimited.
Immodest - impudent, bold, indelicate, shameless, indecent, unchaste.
Impair - lessen, weaken, injure, decrease.
Impart - grant, bestow, disclose, communicate, reveal, divulge.
Impatient - uneasy, eager, restless, hasty.
Impeach - censure, reproach, arraign, accuse.
Impede - hinder, delay, obstruct, retard.
Impediment - obstruction, obstacle, hinderance.
Impel - urge, force, incite, induce, instigate, animate, encourage.
Impending - imminent, threatening.
Imperative - commanding, imperious, authoritative, despotic.
Imperfection - wanting, blemish, fault, defect, failing, frailty, foible, weakness.