Word forms: comparative costlier, superlative costliest
1. adjective
If you say that something is costly, you mean that it costs a lot of money, often more than you would want to pay.
Having professionally-made curtains can be costly, so why not make your own?
Synonyms: expensive, dear, stiff, excessive More Synonyms of costly
2. adjective
If you describe someone's action or mistake as costly, you mean that it results in a serious disadvantage for them, for example the loss of a large amount of money or the loss of their reputation.
Psychometric tests can save organizations from grim and costly mistakes.
This sort of scandal in international banking has been politically costly.
More Synonyms of costly
costly in British English
(ˈkɒstlɪ)
adjectiveWord forms: -lier or -liest
1.
of great price or value; expensive
2.
entailing great loss or sacrifice
a costly victory
3.
splendid; lavish
Derived forms
costliness (ˈcostliness)
noun
costly in American English
(ˈkɔstli; ˈkɑstli)
adjectiveWord forms: ˈcostlier or ˈcostliest
1.
a.
costing much; expensive; dear
b.
at the cost of great effort, damage, sacrifice, etc.
a costly victory
2.
magnificent; sumptuous
3. Archaic
lavish; extravagant
SYNONYMY NOTE: costly refers to something that costs much and usually implies richness, magnificence, rareness,etc. [costly gems]: it is often applied to that which it would cost much in money or effort to corrector replace [a costly error]; expensive implies a price in excess of the article's worth or of the purchaser's ability topay [an expensive hat]; dear implies an exorbitant price or one considerably beyond the normal or fair price [meat is so dear these days]; valuable, in this connection, implies such great value as to bring a high price [a valuable collection]; invaluable suggests value so great that it cannot be appraised in monetary terms [invaluable aid]
OPPOSITE: cheap
Derived forms
costliness (ˈcostliness)
noun
Word origin
ME: see cost & -ly1
Examples of 'costly' in a sentence
costly
Going to court is costly and can often lead to increased bitterness.
Times, Sunday Times (2010)
You pay interest on only the cash you have drawn so it can be less costly.
The Sun (2008)
This may be a little costly but the legal remedies available to you require legal expertise.
The Sun (2015)
This is quite a lot more likely than kidney removal and quite a lot more costly.
Times, Sunday Times (2013)
Working wives are less costly to divorce.
Times, Sunday Times (2006)
The photographers were warned they could face an enormously costly legal battle.
The Sun (2007)
It would make the renovations easier and less costly.
Times, Sunday Times (2015)
The council says it is monitoring the situation and is keen to avoid lengthy and costly legal proceedings.
Times, Sunday Times (2012)
They are costly and often applicants who come in through an agency just as quickly depart through an agency.
Times, Sunday Times (2006)
Yes, this is a costly sacrifice.
Christianity Today (2000)
Exposed by the financial crisis, banks have been hit by a series of costly scandals.
Times, Sunday Times (2016)
It will probably be used only rarely owing to the costly and time-consuming nature of the process.
Times, Sunday Times (2012)
It was obviously a time-consuming and costly experience.
The Sun (2011)
In many cases these can be costly and time-consuming to treat.
Times, Sunday Times (2013)
Everything is exposed to the elements, and that makes it very costly.
Times, Sunday Times (2014)
Kingsbridge is less costly than nearby Salcombe.
Times, Sunday Times (2013)
Forced downtime is what they really shared, and it has become a rare and often costly thing.
Times, Sunday Times (2014)
With the rows often ending in costly battles, many administrators admit that they quietly concede to the demands.
Times, Sunday Times (2006)
It is only ten years since the split capital investment trust scandal, a costly mess stoked by all three of those factors.
Times, Sunday Times (2015)
One way to test who's genuinely committed is to see who is willing to undertake a costly sacrifice '.
Times, Sunday Times (2010)
That could lead to billions of pounds in payments, dashing hopes that banks can soon draw a line under the costliest mis-selling scandal in history.
Times, Sunday Times (2015)
In other languages
costly
British English: costly ADJECTIVE
If you say that something is costly, you mean that it costs a lot of money, often more than you would want to pay.
Having professionally-made curtains can be costly.
American English: costly
Brazilian Portuguese: caro
Chinese: 昂贵的
European Spanish: costoso
French: coûteux
German: kostspielig
Italian: costoso
Japanese: 高価な
Korean: 비싼
European Portuguese: caro
Latin American Spanish: costoso
Chinese translation of 'costly'
costly
(ˈkɔstlɪ)
adj
(= expensive) 昂贵(貴)的 (ángguì de)
(fig) 代价(價)惨(慘)重的 (dàijià cǎnzhòng de)
1 (adjective)
Definition
expensive
Having curtains professionally made can be costly.
Synonyms
expensive
He has a lot of expensive recording equipment.
dear
Don't buy that one – it's too dear.
stiff
excessive
banks which cripple their customers with excessive charges
steep (informal)
The annual premium can be a little steep.
highly-priced
exorbitant
exorbitant housing prices
extortionate
the extortionate price of designer clothes
Opposites
reduced
,
fair
,
cheap
,
reasonable
,
low-priced
,
inexpensive
,
economical
,
dirt-cheap
,
cheapo (informal)
2 (adjective)
the exceptionally beautiful and costly cloths made in northern Italy
Synonyms
splendid
a splendid Victorian mansion
rich
This is a Baroque church with a rich interior.
valuable
valuable old books
precious
jewellery and precious objects belonging to her mother
gorgeous
Some of these Renaissance buildings are absolutely gorgeous.
lavish
a lavish party to celebrate his fiftieth birthday
luxurious
a luxurious hotel
sumptuous
a sumptuous feast
priceless
priceless works of art
opulent
an opulent lifestyle
3 (adjective)
Definition
involving great loss or sacrifice
If you follow the procedures correctly you will avoid costly mistakes.
Synonyms
damaging
Is the recycling process damaging to the environment?
disastrous
the recent, disastrous earthquake
harmful
the harmful effects of smoking
catastrophic
A tidal wave caused catastrophic damage.
loss-making
ruinous
the ruinous effects of the conflict
deleterious (formal)
Fear of crime is having a deleterious effect on society.
Additional synonyms
in the sense of catastrophic
A tidal wave caused catastrophic damage.
Synonyms
disastrous,
devastating,
tragic,
calamitous,
cataclysmic
in the sense of dear
Definition
charging high prices
Don't buy that one – it's too dear.
Synonyms
expensive,
costly,
high-priced,
excessive,
pricey (informal),
at a premium,
overpriced,
exorbitant
in the sense of deleterious
Definition
harmful or injurious
Fear of crime is having a deleterious effect on society.