unfailing
adj.
late 14c., "never coming to an end, unceasing, everlasting, inexhaustible," from un-(1) "not" + present participle of fail, v.. Related: Unfailingly.
| 词汇 | unfailing | 
| 词根词缀 | Online Etymology Dictionary unfailing adj. late 14c., "never coming to an end, unceasing, everlasting, inexhaustible," from un-(1) "not" + present participle of fail, v.. Related: Unfailingly. | 
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