Collins COBUILD Advanced Learner's English Dictionary - -bottomed

-bottomed can be added to adjectives or nouns to form adjectives that indicate what kind of bottom an object or person has. ...a glass-bottomed boat. COMB in ADJ BOTTOMLESS 1. If you describe a supply of something as bottomless, you mean that it seems so large that it will never run out. Princess Anne does not have a bottomless purse. ADJ 2. If you describe something as bottomless, you mean that it is so deep that it seems to have no bottom. His eyes were like bottomless brown pools. ADJ 3. If you describe something as a bottomless pit, you mean that it seems as if you can take things from it and it will never be empty or put things in it and it will never be full. A gold mine is not a bottomless pit, the gold runs out... The problem is we don’t have a bottomless pit of resources... PHRASE