Definitions

by the book

ADJECTIVE

dead-on

Synonyms

STRONGEST

accurate precise

WEAK

absolutely right dead-center definite direct exact on the button on the mark on the money on the nose pinpoint to the point unerring very accurate

Antonyms

STRONGEST

careless false inaccurate questionable

ADJECTIVE

exacting

Synonyms

STRONGEST

harsh imperious onerous painstaking precise rigid rigorous strict stringent

STRONG

taxing trying

WEAK

burdensome careful critical difficult exigent finicky fussy grievous hard hypercritical nit-picking oppressive particular persnickety picky severe stern tough unsparing weighty

Antonyms

STRONGEST

careless easy easygoing flexible inexact lenient loose mild soft tolerant yielding

WEAK

giving lending

ADJECTIVE

fair and square

Synonyms

WEAK

aboveboard honest honest and aboveboard impartial just straightforward

ADJECTIVE

methodic

Synonyms

WEAK

all together analytical businesslike by the numbers careful cut-and-dried deliberate disciplined efficient exact fixed framed in a groove logical methodized meticulous neat ordered orderly painstaking planned regular scrupulous set-up structured systematic systematical tidy together well-regulated

ADJECTIVE

methodical/methodic

Synonyms

WEAK

Antonyms

WEAK

confused disorderly disorganized imprecise unmethodical/unmethodic

ADJECTIVE

painstaking

Synonyms

STRONGEST

assiduous careful conscientious diligent earnest exacting scrupulous strenuous

STRONG

detail-oriented

WEAK

by the numbers conscionable exact finicky fussbudget fussy hard-working heedful industrious particular persevering persnickety picky punctilious punctual sedulous stickler thoroughgoing

Antonyms

STRONGEST

careless lazy lethargic negligent thoughtless uncareful unconcerned unenthusiastic unscrupulous

WEAK

easy half-baked half-done unmindful unthorough

ADJECTIVE

proper

Synonyms

STRONGEST

correct moral polite precise respectable

WEAK

becoming befitting by the numbers comely comme il faut conforming de rigueur decorous demure genteel in line kosher nice priggish prim prissy prudish punctilious puritanical refined right seemly solid square stone straight strait-laced stuffy

Antonyms

STRONGEST

bad corrupt dishonest imprecise inaccurate inexact

WEAK

crass crude general improper incorrect misbehaving objectionable substandard unacceptable unconventional unsuitable

ADJECTIVE

stern

Synonyms

STRONGEST

flinty grim hard-nosed harsh rigid steely strict tough

STRONG

ascetic astringent bitter forbidding rough

WEAK

austere bullheaded cruel disciplinary dyed-in-the-wool frowning hang-tough hard hard-boiled hard-core hard-line hard-shell hardheaded implacable inexorable inflexible mortified mulish relentless rigorous severe stiff-necked stubborn unrelenting unsparing unyielding

Antonyms

STRONGEST

easy flexible gentle kind lenient nice soft yielding

STRONG

bland mild

WEAK

cheerful funny light smiling tolerant

ADJECTIVE

stringent

Synonyms

STRONGEST

binding demanding draconian exacting forceful harsh inflexible ironclad rigorous severe stiff strict tough

WEAK

acrimonious brick-wall by the numbers compelling confining convincing dead set on drawing dyed-in-the-wool hard hard-nosed iron-fisted picky poignant powerful rough set unpermissive valid

Antonyms

STRONGEST

amenable calm easy easygoing facile flexible gentle kind lenient mild nice pliable pliant soft weak willing yielding

WEAK

inexact tolerant

ADJECTIVE

systematical

Synonyms

WEAK

all together analytical businesslike by the numbers careful cut-and-dried deliberate disciplined efficient exact fixed framed in a groove logical methodic methodized meticulous neat ordered orderly painstaking planned regular scrupulous set-up structured systematic tidy together well-regulated

ADVERB

by the numbers

Synonyms

WEAK

according to Hoyle according to the highest authority gospel in a systematic manner indisputable

NOUN

according to Hoyle

Synonyms

WEAK

according to regulation according to rule as it should be by the numbers gospel indisputable proper

NOUN

form

Synonyms

STRONGEST

behavior fashion law manner method mode practice process regulation rule style way

STRONG

canon ceremonial channels conduct convention custom decorum etiquette formality habit layout manners precept proceeding propriety protocol rite ritual ropes setup usage

WEAK

by the numbers convenance done thing

Antonyms

STRONGEST

lawlessness

STRONG

bad manners impropriety

WEAK

disarrangement disorganization shapelessness

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A balanced portfolio in your mid-70s means allocating 40% to 50% to bonds, if you’re playing your septuagenarian retirement planning by the book.

From MarketWatch • Jun. 2, 2026

Those who have worked alongside him describe him as a "by the book man" who has had a distinguished career in public service and is "diligent about processes and acting properly."

From BBC • Apr. 20, 2026

Tonga coach Kristian Woolf defended the team doctors, saying everything was "done by the book".

From Barron's • Nov. 3, 2025

It was also more cash than he’d ever considered possible in his former life of doing things by the book.

From The Wall Street Journal • Oct. 25, 2025

Hooker was amused by the book, which annoyed Charles to no end.

From "Charles and Emma: The Darwins' Leap of Faith" by Deborah Heiligman

by the book

Example Sentences

Related Words