at first sight

1. 1.

   on first seeing (someone or something); immediately

   “it was love at first sight”

   Synonymsat first glance
2. 2.

   after an initial impression, which later proves incorrect

   Synonymsat first glance

Questions about at first sight

What does at first sight mean?

at first sight means "on first seeing (someone or something); immediately". That is the primary sense; the word has 2 in total, listed in full on this page.

What is another word for at first sight?

Close synonyms include at first glance, at first glance. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is at first sight a common word?

at first sight is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.