demanding

1. Requiring more than usually expected or thought due;
   Especially great patience and effort and skill (synset 300713705)
   "found the job very demanding"; "a baby can be so demanding"
   also: difficult, hard - not easy; requiring great physical or mental effort to accomplish or comprehend or endure
   similar to:

   • exacting, exigent - requiring precise accuracy
   • hard to please, hard-to-please - (of persons) fussy and demanding
   • needy - demanding or needing attention, affection, or reassurance to an excessive degree
   • rigorous, stringent, tight - demanding strict attention to rules and procedures
   • exacting, stern, strict - severe and unremitting in making demands

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