draining

1. (not comparable) Designed and/or used for drainage.Examples: "The author of this experiment has constructed, and uses a draining wheel of cast iron, that weighs about 4 cwt ."; "The mole-plough as a draining machine can never be of much utility in a country like Scotland, where alluvial deposits, though not deficient in extent, are characterized more by the abundance of stony matter than of clay in the subsoil; it is only in the few carses that such clays occur as would suit the mole plough."; "We made a draining rack in a few odd minutes which saved considerable time over the common method of tying in sacks."not-comparable

2. (comparable) Causing a depletion of energy or resources; exhausting.Examples: "I was very tired; working everyday and then staying at the hospital was very draining."; "He was in the luxurious position of not having to hunt for girls—a process he finds very draining."; "Not every space is going to energise you, but if you work on looking after yourself more, the tolerance levels for spaces which you found more draining will increase."Synonyms: tiresome, wearing, draining, exhausting, exhaustive, fatiguing, tiresome, tiringcomparable