English Thesaurus

Synonyms of 'valid'

(adjective) 
Definition
based on sound reasoning
Both sides have made valid points.
Synonyms
sound
They are trained nutritionists who can give sound advice on diets.
,
good
Can you think of one good reason why I should tell you?
,
reasonable
He's a reasonable sort of chap.
, , ,
powerful
a powerful drama about a corrupt city leader
,
convincing
Scientists say there is no convincing evidence for this theory.
, , , ,
rational
a rational decision
,
logical
a logical argument
, , ,
sustainable
, , , ,
well-founded
We must respond to well-founded criticism with a willingness to change.
,
cogent
He makes a cogent argument for a more egalitarian education system.
,
well-grounded
Opposites
(adjective) 
Definition
legally acceptable
For foreign holidays you will need a valid passport.
Synonyms
legal
What I did was perfectly legal.
,
official
An official announcement is expected later today.
,
legitimate
They have demanded the restoration of the legitimate government.
, ,
genuine
They are convinced the painting is genuine.
,
proper
Please ensure that the proper procedures are followed.
,
in effect
,
authentic
patterns for making authentic border-style clothing
,
in force
The new tax is already in force.
,
lawful
lawful for the doctors to treat her in whatever way they considered best
,
bona fide
We are happy to donate to bona fide charitable causes.
,
legally binding
,
signed and sealed
Opposites

Additional synonyms

in the sense of authentic
Definition
of undisputed origin or authorship
patterns for making authentic border-style clothing
Synonyms
on the level (informal),
dinkum (Australian, New Zealand, informal),
the real McCoy,
true-to-life,
in the sense of bona fide
Definition
undertaken in good faith
We are happy to donate to bona fide charitable causes.
Synonyms
on the level (informal),
kosher (informal),
dinkum (Australian, New Zealand, informal),
the real McCoy
in the sense of cogent
Definition
forcefully convincing
He makes a cogent argument for a more egalitarian education system.

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Video: pronunciation of 'valid'

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Thesaurus for valid from the Collins English Thesaurus
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