It means that the function is old (and often poorly designed) so should not be used anymore. It is kept there for backwards compatibility.
Depends on what you mean. If the road is poorly designed visually, drivers can get confused and more accidents will occur. If the road is poorly engineered, it can become flooded when rains come. If the road is made of inferior materials, the road can cause blinding glare, melt in hot sun, or not last as long as it needs to. If the soil beneath the road is poorly prepared, potholes and sinkholes are more likely to occur.
An air trap is where the air is bled out of a system normally, there is also trapped air in some poorly designed systems or systems with water having recently been added.
A simple synonym is creator.
The synonym for "weather-tight", would be water-proof.
Tired.
Some synonyms for "old" include aged, elderly, and mature.
exhausted
your* you mean?
a poorly designed hypothesis
It may just be a worn out copy of the show.
The poor design.
because they are poorly designed
A baby tee is a T-shirt designed to be worn by babies, or a short T-shirt designed to be worn by young ladies.
nauseous, nauseated, bilious, sick; ill, unwell, poorly, green around the gills.
Designed to Sell - 2004 From Worn-Out to Wow was released on: USA: 28 July 2008
Poorly designed and manufactured foreign junk!