1. requiring more than usually expected or thought due
; especially great patience and effort and skill
; - Example: "found the job very demanding"- Example: "a baby can be so demanding"
The Collaborative International Dictionary of English v.0.48:
Demand \De*mand"\, v. t. [imp. & p. p. Demanded; p. pr. & vb.
n. Demanding.] [F. demander, LL. demandare to demand,
summon, send word, fr. L. demandare to give in charge,
intrust; de- + mandare to commit to one's charge, commission,
order, command. Cf. Mandate, Commend.]
1. To ask or call for with authority; to claim or seek from,
as by authority or right; to claim, as something due; to
call for urgently or peremptorily; as, to demand a debt;
to demand obedience.
This, in our foresaid holy father's name,
Pope Innocent, I do demand of thee. --Shak.
2. To inquire authoritatively or earnestly; to ask, esp. in a
peremptory manner; to question.
I did demand what news from Shrewsbury. --Shak.
3. To require as necessary or useful; to be in urgent need
of; hence, to call for; as, the case demands care.
4. (Law) To call into court; to summon. --Burrill.
WordNet (r) 3.0 (2006):
adj 1: requiring more than usually expected or thought due;
especially great patience and effort and skill; "found
the job very demanding"; "a baby can be so demanding"
Moby Thesaurus II by Grady Ward, 1.0:
111 Moby Thesaurus words for "demanding":
Herculean, Spartan, Spartanic, abstruse, accurate, arduous,
astringent, attentive, austere, authoritarian, brutal, burdensome,
cajoling, clamant, clamorous, close, coaxing, complex,
conscientious, correct, critical, crying, delicate, detailed,
difficile, difficult, dour, draining, dunning, exact, exacting,
exigent, exorbitant, exquisite, extortionate, fine, finical,
finicking, finicky, formidable, fussy, grasping, grievous, grim,
hairy, hard, hard-earned, hard-fought, harsh, imperative,
importunate, insistent, instant, intricate, jawbreaking, knotted,
knotty, laborious, loud, mean, meticulous, minute, nagging, narrow,
nice, no picnic, not easy, operose, oppressive, particular,
persistent, pertinacious, pestering, plaguing, precise,
precisianistic, precisionistic, pressing, punctilious, punctual,
refined, religious, rigid, rigorous, rough, rugged, scrupulous,
scrutinizing, set with thorns, severe, spiny, steep, stern,
strenuous, strict, stringent, subtle, taxing, teasing, thorny,
ticklish, toilsome, tough, tricky, trying, unsparing, uphill,
urgent, weighty, wheedling, wicked