adverb taking the 'to' particle, taru-adjective
endlessly; on and on; continuously
Only when written 延々 / 延延
Describes an action or state that continues without stopping, often with a sense of tediousness. Used adverbially with と or as a たる adjective.
彼の話は延々と続いた。
His story went on and on.
I walked along the endlessly continuing desert road.
taru-adjective, adverb taking the 'to' particle
meandering; winding; serpentine
Describes a long, winding shape like a river or path. Literary and somewhat rare; often replaced by 曲がりくねった in everyday speech.
蜿蜒と続く山道を登った。
I climbed the winding mountain path.
川が蜿蜒と流れている。
The river flows meanderingly.