Unique
Special
One of a kind
"Unique", "eccentric", and "quirky" are synonyms for "strange" that often carry a more positive connotation. These words can suggest individuality, creativity, and a sense of charm or intrigue.
"Unique" typically has the most positive connotation among the synonyms for "strange." It implies something distinct, exceptional, or one-of-a-kind, rather than merely odd or unusual.
Some synonyms for home with positive connotations are sanctuary, haven, refuge, and retreat.
Remarkable
Im going to have to say negative.
Positive connotations for odd would be, different, unusual, strange, irregular, bizarre,
"Unique" suggests something one of a kind or rare, often in a positive or special way. "Bizarre" implies something strange, eccentric, or unconventional, often with a negative or unsettling connotation.
A negative connotation that can be interpreted when calling something "strange" is that it is somehow inferior because it is not considered "normal." Depending on the situation, being strange can either be advantageous, or disadvantageous.
positive connotation
Some synonyms for speak with a negative connotation are blab, babble, prattle, and chatter.
negative
A negative connotation is a descriptive word that implies an undesirable characteristic. A negative connotation of the word strange is the word weird.