unobserved adjective 1adverb 1 adjective1 •Not seen or observed.Such practices as These, too gross to lye / Long unobserv'd by each discerning Eye, / The more judicious Israelites Unspell'd, / Though still the Charm the giddy Rabble held, […] — 1682 adverb1 •Whilst not being seen or observed.The visitors we do not encourage are the many small boys who slip in unobserved and are a danger to themselves and the staff. — 1960
