Synonyms of logical

logical

adjective

ˈlä-ji-kəl 

1

as in rational

according to the rules of logic

the lawyer won the case with a logical argument about the motives of the suspect

Synonyms & Similar Words

• rational
• reasonable
• coherent
• valid
• sensible
• good
• analytic
• empirical
• sound
• justifiable
• consequent
• well-grounded
• well-founded
• cognitive
• syllogistic
• defensible
• a priori
• sustainable
• supportable
• tenable
• maintainable
• a posteriori
• defendable

Antonyms & Near Antonyms

• illogical
• irrational
• unreasonable
• weak
• unsound
• incoherent
• invalid
• misleading
• illegitimate
• inconsequential
• specious
• fallacious
• sophistic
• casuistic
• unscientific
• absurd
• inconsequent
• stupid
• unarticulated
• nonsensical
• insane
• preposterous
• mad
• crazy
• eristic
• fatuous
• loony
• nutty
• thoughtless
• senseless
• simpleminded
• harebrained
• witless
• daffy
• cockeyed
• unconvincing
• weak-minded
• half-baked
• half-witted
• uncompelling

2

as in reasonable

based on sound reasoning or information

that's the logical choice under the circumstances

Synonyms & Similar Words

• reasonable
• rational
• reasoned
• sensible
• valid
• good
• solid
• hard
• justified
• true
• plausible
• commonsense
• informed
• sober
• well-founded
• commonsensical
• firm
• credible
• real
• just
• levelheaded
• actual
• validated
• convincing
• commonsensible
• certain
• substantiated
• sure
• cogent
• confirmed
• certified
• verified
• colorable
• corroborated

Antonyms & Near Antonyms

• illogical
• irrational
• unreasonable
• nonsensical
• unsound
• unfounded
• invalid
• unjustified
• uninformed
• nonrational
• groundless
• unwarranted
• unsupported
• unsubstantiated
• weak
• unreasoned
• implausible
• flimsy
• unconvincing
• nonvalid
• false
• misguided
• fallacious
• misled

Example Sentences

Recent Examples of logical

Process and poetry One early decision Placek made was to move away from corporate positioning and toward linguistics, much to the chagrin of some of his more logical clients. — HubSpot, 31 July 2026

More importantly, the researchers found that the effective logical error rate was 10 times lower than the physical error rate. — Neetika Walter, Interesting Engineering, 30 July 2026

This was a major sticking point, and not in the most logical way. — Trey Wallace Outkick, FOXNews.com, 30 July 2026

If a larger investment universe has benefited institutions, opening those same opportunities to millions of retirement savers sounds like a logical next step. — Bydoug Ashburn, Encyclopedia Britannica, 29 July 2026