Unlooked is an uncommon adjective that means unexpected, unforeseen or sudden. There are several synonyms for this word that can be used interchangeably in various contexts. Some of these synonyms include unforeseeable, unanticipated, surprising, spontaneous, and random. The word "unforeseeable" suggests that something cannot be predicted or anticipated beforehand. "Unanticipated" also means unexpected, but it has a sense of being caught off-guard. "Surprising" indicates that something causes one to feel amazement or astonishment. "Spontaneous" implies that something happens naturally, without any premeditation, while "random" suggests that something occurs without a particular pattern or sequence. These synonyms can help writers to add nuance and precision to their language and improve the clarity and effectiveness of their writing.