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

The system produced a mathematical proof that was accepted by Lean, a proof-assistant software used to check the logical correctness of formal mathematical arguments. — Neetika Walter, Interesting Engineering, 7 Nov. 2026

Respect to Sony for taking the retro headphone trend all the way to its logical conclusion and just releasing the headphones from the original Walkman. — David Pierce, The Verge, 7 Nov. 2026

Then, like magic, a few seconds later, a full, coherent, logical response appears. — Lee-Lean Shu, Forbes.com, 6 Nov. 2026

With 40 percent of its revenue generated by returning customers, Braquet said this focus was the logical next step and the motivation in their ongoing first funding round. — Lily Templeton, Footwear News, 3 Nov. 2026