تَدَنّ (التّدَنّي): هُبُوط، اِنْخِفَاض drop(ping), sinking, fall(ing), fall-off, decline, decrease, diminution, shrinking, shrinkage, dwindling, depression, slump; depreciation

تَدَنّ: مُسْتَوىً مُنْخَفِض، رَدَاءَة low level; poorness, badness, inferiority