Adjective

(en adjective)

Seemingly well-reasoned, plausible or true, but actually fallacious.

This idea that we must see through what we have started is specious , however good it may sound.

*1776 , Thomas Paine,

*:I have frequently amused myself both in public and private companies, with silently remarking, the specious errors of those who speak without reflecting.

Having an attractive appearance intended to generate a favorable response; deceptively attractive.

(obsolete) Beautiful, pleasing to look at.

Adjective

(en adjective)

Obvious or easy to notice.

* {{quote-book, year=1928, author=Lawrence R. Bourne

, title=Well Tackled! , chapter=7 citation , passage=“No, don't,” replied the superintendent; “in fact, I'd rather you made yourself conspicuous elsewhere. Go down to the landing stage and cross to New Brighton or Wallasey—doesn't matter which—and come back. No doubt you will be seen, and reported to have gone across.”}}

He was conspicuous by his absence.

Noticeable or attracting attention, especially if unattractive.

* 1969 , Saul Bellow, Mr Sammler's Planet , Penguin Books Ltd, page 6:

For his height he had a small face. The combination made him conspicuous .

He had a conspicuous lump on his forehead.