And, as it was not a particularly attractive human trait, he had not programmed himself to appear to be nervous at any given circumstance.

The laugh was an attractive and alarming trait, because sometimes he would laugh about things that weren't funny at all.

It is not an attractive trait.

If attractive traits are good fitness indicators, this means that sexual selection increases the genetic load of the offspring of unattractive individuals.

They call it self-pity, and it isn't an attractive trait.

Some of the more attractive traits of the Shiah were submerged.

Mate choice behaviors are thought to be important forces that can result in speciation events because the strength of selection for attractive traits is often very strong.

It's one of his more useful but less attractive traits.

In earlier generations, such as the 1950s, society perceived shyness as a more socially attractive trait, especially in women.

The casual pose caught the sense of an academician on the campaign trail that is one of his most attractive, and perhaps least presidential, traits.