Strange
Unusual
Synonyms: Unusual, curious, funny, weird, queer, unfamiliar, atypical, untypical, out of the ordinary, extraordinary, puzzling, mysterious, baffling, inexplicable, uncommon, singular, aberrant, freakish, suspicious, questionable, unnatural, unco, creepy, rum, eccentric, idiosyncratic, offbeat, quaint, off-centre, way out, kooky, oddball, cranky, off the wall, backasswards, odd, peculiar, bizarre, uncanny, unexpected, abnormal, anomalous, different, out of the way, remarkable, mystifying, perplexing, unaccountable, incongruous, irregular, deviant, freak, surreal, dubious, eerie, outré, fishy, spooky, bizarro, unconventional, outlandish, quirky, zany, wacky, freaky, kinky, like nothing on earth, screwy, wacko, and dilly.
Ill
Synonyms: Ill, poorly, not (very) well, out of sorts, under/below par, liverish, queasy, off, under the weather, funny, crummy, rough, grotty, crook, seedy, uneasy, uncomfortable, self-conscious, out of place, disorientated, unwell, indisposed, not oneself, not up to par, peaky, sick, nauseous, off colour, not up to snuff, peculiar, lousy, ropy, wabbit, queer, ill at ease, edgy, awkward, embarrassed, and like a fish out of water.
Unfamiliar
Synonyms: Unfamiliar, new, previously unencountered, unknown, alien, and encountered.
Example Sentences
The strange noise startled everyone.
He gave a strange look yesterday.
Strange things happen at night.
That was a strange coincidence indeed.