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scarce

/skers//skeəs/·adjective
existing in too small a quantity for the demand; hard to get
Fig. 1 — Units of something appear in waves, and seekers come for them.
01Definition

Scarce measures a ratio, not an amount: something is scarce when the wanting outruns the having. That is what separates it from 'rare' — gold is rare everywhere, but water is scarce only where thirst exceeds the wells. Economics calls itself the study of scarce resources for exactly this reason: scarcity is the founding condition that forces every choice. And the first thing scarcity changes is never the resource — it is the behavior of the people seeking it.

02In use
  • iAfter the flood, clean water became scarce: supplies shrank while demand continued to surge.
  • iiAffordable housing is increasingly scarce in the capital, and the disparity between wages and rents keeps widening.
  • iiiDuring the recession, steady jobs grew scarce and competition for them fierce.
03Collocations
  • scarce resources
  • increasingly scarce
  • a scarce commodity
  • scarce supplies
  • make oneself scarce

Family scarcity (noun) · scarcely (adverb — 'hardly', a shifted sense)

04Relations

=in short supply, sparse, meager, insufficient, rare

≠abundant, plentiful, ample

05Compared
PairThe difference
scarce vs prevalentthe common, everywhere condition → prevalent; demand outruns supply → scarce.
scarce vs abundantdemand outruns supply → scarce; more than enough to go round → abundant.
scarce vs sparsetoo little for the demand — competition over supply → scarce; thinly spread, far apart — gaps between occurrences → sparse.
06TOEFL & IELTS

'The allocation of scarce resources' is the textbook definition of economics, and TOEFL passages quote it almost verbatim. IELTS essays on housing, water, and jobs all reward 'increasingly scarce' and the noun 'scarcity'. Two traps: 'scarcely' means 'hardly' (degree, not supply), and scarce ≠ rare — scarce is always relative to demand, which is the distinction reading questions test.

07Asked
What does 'make yourself scarce' mean?
To slip away and stay out of sight — usually to dodge a task, a person, or trouble about to land. The idiom leans playful or wry: a teenager makes himself scarce when the dishes need doing. It borrows the adjective's core, being hard to find, and turns it into a deliberate act: not that you are rare, but that you have arranged not to be around.
What is the difference between scarce and rare?
Scarce measures supply against demand; rare measures how seldom a thing occurs — the full contrast sits on the prevalent vs scarce and scarce vs abundant pages in the 'Compared' list above.
What is the difference between scarce and sparse?
Scarce is about quantity relative to need — there is not enough to go round. Sparse is about spacing — thinly scattered over an area: sparse hair, a sparse crowd, sparse vegetation. Water can be scarce in a city of millions; trees are sparse on a windswept moor. One says too little for the demand; the other says spread thin across the ground.
Why does economics call resources scarce?
Because scarcity is its founding premise: human wants exceed the means to satisfy them, so every use of a resource forecloses another. That is why economics is often defined as the study of how societies allocate scarce resources. The scene above shows the real consequence — nothing on the field actually shrinks; what changes is the seekers, who stop strolling and start racing the moment there is not enough.