Odd
Weird
Synonyms Strange, weird, bizarre, unusual, idiosyncratic, outlandish, freakish, quaint, off-centre, freaky, screwy, oddball, off the wall, bizarro, curious, queer, unfamiliar, anomalous, different, out of the way, exceptional, extraordinary, puzzling, mysterious, baffling, incongruous, irregular, deviant, freak, dubious, eerie, unco, fishy, spooky, backasswards, peculiar, funny, eccentric, abnormal, unconventional, offbeat, quirky, zany, wacky, kooky, kinky, cranky, wacko, dilly, uncanny, unexpected, atypical, untypical, out of the ordinary, foreign, rare, remarkable, mystifying, perplexing, unaccountable, uncommon, singular, aberrant, suspicious, questionable, unnatural, outré, creepy, and rum.
Isolated
Synonyms Occasional, irregular, incidental, sporadic, periodic, miscellaneous, varied, casual, isolated, random, seasonal, part-time, various, and sundry.
Free
Synonyms Spare, free, available, between appointments, unoccupied, not committed, and between engagements.
Lone
Example Sentences
He noticed an odd behavior yesterday.
The room had an odd smell.
That was an odd question asked.
She wore an odd pair of shoes.