Wrong is the opposite of right. It is one of the 50 words for opposite qualities. When something or someone has an error, the thing or the person is wrong.

Wrongdoer is someone who does wrong.

Wrongdoing is act which is wrong. Sometimes, the short word wrong itself is used for wrongdoing in statements like this: "Two wrongs don't make a right."

Wrongheaded is for someone who has a wrong idea in the head.

Wrongheadedly is sometimes used in statements like this: "A number of teachers, without enough knowledge of Basic English, were wrongheadedly against it."  ¶ 18:14

  Sad is a word for the quality of being unhappy: the opposite of "happy." It is one of the 50 words for opposite qualities. When something makes you sad, it may be said that you are sad.

When something makes you sad, in addition, you may say that it is a sad thing. If a picture gives you a sad feeling, for example, you may say it is a sad picture. (The Basic Words.)

If you do something with a sad feeling, it may be said that you do it sadly.

If an event makes you sad and you give a talk about the event, you may put, somewhere in the statement, the word "sadly." Though this writing about the word "sad" is not very long, I have nothing more to say. Sadly, I have to put an end to it here.
  ¶ 17:45

  50 for Oppsites are:
awake,
bad, bent, bitter, blue,
certain, cold, complete, cruel,
dark, dead, dear, delicate, different, dirty, dry,
false, feeble, female, foolish, future,
green,
ill,
last, late, left, loose, loud, low,
mixed,
narrow,
old, opposite,
public,
rough,
sad, safe, secret, short, shut, simple, slow, small, soft, solid, special, strange,
thin,
white, wrong  ¶ 16:32

  100 for General Qualities are:

able, acid, angry, automatic,
beautiful, black, boiling, bright, broken, brown,
cheap, chemical, chief, clean, clear, common, complex, conscious, cut,
deep, dependent,
early, elastic, electric, equal,
fat, fertile, first, fixed, flat, free, frequent, full,
general, good, great, grey,
hanging, happy, hard, healthy, high, hollow,
important,
kind,
like, living, long,
male, married, material, medical, military,
natural, necessary, new, normal,
open,
parallel, past, physical, political, poor, possible, present, private, probable,
quick, quiet,
ready, red, regular, responsible, right, round,
same, second, separate, serious, sharp, smooth, sticky, stiff, straight, strong, sudden, sweet,
tall, thick, tight, tired, true,
violent,
waiting, warm, wet, wide, wise, yellow,
young.  ¶ 16:28

  200 for Things Which May Be Pictured are:

angle, ant, apple, arch, arm, army,

baby, bag, ball, band, basin, basket, bath, bed, bee, bell, berry, bird, blade, board, boat, bone, book, boot, bottle, box, boy, brain, brake, branch, brick, bridge, brush, bucket, bulb, button,

cake, camera, card, cart, carriage, cat, chain, cheese, chest, chin, church, circle, clock, cloud, coat, collar, comb, cord, cow, cup, curtain, cushion,

dog, door, drain, drawer, dress, drop,

ear, egg, engine, eye,

face, farm, feather, finger, fish, flag, floor, fly, foot, fork, fowl, frame,

garden, girl, glove, goat, gun,

hair, hammer, hand, hat, head, heart, hook, horn, horse, hospital, house,

island,

jewel,

kettle, key, knee, knife, knot,

leaf, leg, library, line, lip, lock,

map, match, monkey, moon, mouth, muscle,

nail, neck, needle, nerve, net, nose, nut,

office, orange, oven,

parcel, pen, pencil, picture, pig, pin, pipe, plane, plate, plough, pocket, pot, potato, prison, pump,

rail, rat, receipt, ring, rod, roof, root,

sail, school, scissors, screw, seed, sheep, shelf, ship, shirt, shoe, skin, skirt, snake, sock, spade, sponge, spoon, spring, square, stamp, star, station, stem, stick, stocking, stomach, store, street, sun,

table, tail, thread, throat, thumb, ticket, toe, tongue, tooth, town, train, tray, tree, trousers,

umbrella,

wall, watch, wheel, whip, whistle, window, wing, wire, worm.  ¶ 16:20

  400 Words for General Things are here:

account, act, addition, adjustment, advertisement, agreement, air, amount, amusement, animal, answer, apparatus, approval, argument, art, attack, attempt, attention, attraction, authority,

back, balance, base, behaviour, belief, birth, bit, bite, blood, blow, body, brass, bread, breath, brother, building, burn, burst, business, butter,

canvas, care, cause, chalk, chance, change, cloth, coal, colour, comfort, committee, company, comparison, competition, condition, connection, control, cook, copper, copy, cork, cotton, cough, country, cover, crack, credit, crime, crush, cry, current, curve,

damage, danger, daughter, day, death, debt, decision, degree, design, desire, destruction, detail, development, digestion, direction, discovery, discussion, disease, disgust, distance, distribution, division, doubt, drink, driving, dust,

earth, edge, education, effect, end, error, event, example, exchange, existence, expansion, experience, expert,

fact, fall, family, father, fear, feeling, fiction, field, fight, fire, flame, flight, flower, fold, food, force, form, friend, front, fruit,

glass, gold, government, grain, grass, grip, group, growth, guide,

harbour, harmony, hate, hearing, heat, help, history, hole, hope, hour, humor [humour],

ice, idea, impulse, increase, industry, ink, insect, instrument, insurance, interest, invention, iron,

jelly, join, journey, judge, jump,

kick, kiss, knowledge,

land, language, laugh, law, lead, learning, leather, letter, level, lift, light, limit, linen, liquid, list, look, loss, love,

machine, man, manager, mark, market, mass, meal, measure, meat, meeting, memory, metal, middle, milk, mind, mine, minute, mist, money, month, morning, mother, motion, mountain, move, music,

name, nation, need, news, night, noise, note, number,

observation, offer, oil, operation, opinion, order, organization, ornament, owner,

page, pain, paint, paper, part, paste, payment, peace, person, place, plant, play, pleasure, point, poison, polish, porter, position, powder, power, price, print, process, produce, profit, property, prose, protest, pull, punishment, purpose, push,

quality, question,

rain, range, rate, ray, reaction, reading, reason, record, regret, relation, religion, representative, request, respect, rest, reward, rhythm, rice, river, road, roll, room, rub, rule, run,

salt, sand, scale, science, sea, seat, secretary, selection, self, sense, servant, sex, shade, shake, shame, shock, side, sign, silk, silver, sister, size, sky, sleep, slip, slope, smash, smell, smile, smoke, sneeze, snow, soap, society, son, song, sort, sound, soup, space, stage, start, statement, steam, steel, step, stitch, stone, stop, story, stretch, structure, substance, sugar, suggestion, summer, support, surprise, swim, system,

talk, taste, tax, teaching, tendency, test, theory, thing, thought, thunder, time, tin, top, touch, trade, transport, trick, trouble, turn, twist,

unit, use,

value, verse, vessel, view, voice,

walk, war, wash, waste, water, wave, wax, way, weather, week, weight, wind, wine, winter, woman, wood, wool, word, work, wound, writing,

year.  ¶ 15:59

  Ryota's Daybook: Language Arts & Basic English Ryota's Daybook: Language Arts & Basic English  ¶ 10:12

  100 Words for Operations, etc. are here:

come, get, give, go, keep, let, make, put, seem, take, be, do, have, say, see, send, may, will,

about, across, after, against, among, at, before, between, by, down, from, in, off, on, over, through, to, under, up, with, as, for, of, till, than,

a, the, all, any, every, little, much, no, other, some, such,

that, this, I, he, you, who,

and, because, but, or, if, though, while,

how, when, where, why,

again, ever, far, forward, here, near, now, out, still, then, there, together, well, almost, enough, even, not, only, quite, so, very,

tomorrow, yesterday,

north, south, east, west,

please, yes.  ¶ 21:22