பொருள் : The state of something that has outlived its relevance.
ஒத்த சொற்கள் : non-issue
பொருள் : Mail that can neither be delivered nor returned.
ஒத்த சொற்கள் : dead mail
Dead letter ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Dead letter ka matlab kya hota hai?