But one term she never defines is "evolution," which strikes me as an unfortunate omission.

Whether this reticence is Henry's or Hamilton's is unclear, but it seems an unfortunate omission.

There was an unfortunate omission of information of where to send contributions.

Equally telling is the unfortunate omission of any paintings from the artist's Shadow series, those disembodied abstractions unveiled to wide acclaim in 1977.

This is an edited version of the Paris show, with a few additions and at least one unfortunate omission.

Many of the standards that Rouget identifies as missing pieces in IE9 are indeed unfortunate omissions by Microsoft.

That's an unfortunate omission but hardly in league with the suggestion that frozen soft-shell crabs are acceptable.

There is an unfortunate omission as regards the need for a strategic agency in the field of energy.

True, the agreement is marred by some unfortunate omissions and references.