English Thesaurus

Synonyms of 'must'

(noun) 
Definition
an essential or necessary thing
A visit to the motor museum is a must.
Synonyms
necessity
Water is a basic necessity of life.
,
essential
the essentials of everyday life, such as food and water
,
requirement
The products met all legal requirements.
, , , , ,
requisite
a major requisite for the work of the analysts
,
prerequisite
Good self-esteem is a prerequisite for a happy life.
,
sine qua non (Latin)
,
necessary thing
,
must-have
(verb) 
Definition
used as an auxiliary to express or indicate obligation or requirement
Mr. Allen must pay your legal costs.
Synonyms
ought to
,
have to
Now, you have to go into town.
,
should
,
need to
,
be required to
,
have got to
,
be obliged to
,
be compelled to
,
be under an obligation to
(noun) 
The air was heady with the smell of must.
Synonyms
mould
jars of jam with mould on them
,
rot
Investigations revealed rot in the beams.
,
decay
Plaque causes tooth decay and gum disease.
,
mildew
The room smelt of mildew.
,
mustiness
, ,
fetor
,
mouldiness

Additional synonyms

in the sense of decay
Definition
the process of something rotting
Plaque causes tooth decay and gum disease.
Synonyms
rot,
rotting,
perishing,
disintegration,
corrosion,
gangrene,
caries,
putrefaction,
putrescence,
cariosity,
putridity
in the sense of essential
Definition
something fundamental or indispensable
the essentials of everyday life, such as food and water
Synonyms
vital part,
sine qua non,
must-have
in the sense of fustiness
Synonyms
staleness,
fug,
stuffiness,
smell of decay,
mustiness,
airlessness,
mouldiness,
frowstiness

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Video: pronunciation of 'must'

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Thesaurus for must from the Collins English Thesaurus
Life on the edge
The desire to push the boundaries has been a motivator in many a daring expedition, testing the human spirit and physical abilities to the utmost. Indulge your adventurous spirit by exploring some associated ‘extreme’ vocabulary. Will you have the survival skills to master our quiz?
Read more
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