A roasted coffee that has been left for too long changes aroma and acquires a specific and disagreeable flavor Similar to oldish but with stronger hay-like flavor
When people refer to the good old days, they are referring to a time in the past when they think that life was better than it is now. He remembers the good old days when everyone in his village knew him and you could leave your door open at night
An old friend, enemy, or rival is someone who has been your friend, enemy, or rival for a long time. I called my old friend John Horner The French and English are old rivals
of a very early stage in development; "Old English is also called Anglo Saxon"; "Old High German is High German from the middle of the 9th to the end of the 11th century"
Of an object, concept, etc., having existed for a relatively long period of time
(1) (Geology) Having become slower in flow and less vigorous in action Used of a river (2) (Geography/Topography) Having become simpler in form and of lower relief; well advanced toward reduction by running water to the lowest level possible Used of topographic features or a landform
Something that is old is no longer in good condition because of its age or because it has been used a lot. He took a bunch of keys from the pocket of his old corduroy trousers. an old toothbrush. new
Long practiced; hence, skilled; experienced; cunning; as, an old offender; old in vice
You use old to refer to something that is no longer used, that no longer exists, or that has been replaced by something else. The old road had disappeared under grass and heather Although the old secret police have been abolished, the military police still exist