Adjective

(er)

Evincing strength; indicating vigorous health; strong; sinewy; muscular; vigorous; sound; as, a robust body; robust youth; robust health.

He was a robust man of six feet four.

* Anthony Trollope (1815-1882)

She was stronger, larger, more robust physically than he had hitherto conceived.

Violent; rough; rude.

* {{quote-news

, year=2011 , date=October 1 , author=Phil McNulty , title=Everton 0 - 2 Liverpool , work=BBC Sport citation , page= , passage=As a frenetic opening continued, Cahill - whose robust approach had already prompted Jamie Carragher to register his displeasure to Atkinson - rose above the Liverpool defence to force keeper Pepe Reina into an athletic tip over the top.}}

Requiring strength or vigor; as, robust employment.

Sensible (of intellect etc.); straightforward, not given to or confused by uncertainty or subtlety;

(systems engineering) Designed or evolved in such a way as to be resistant to total failure despite partial damage.

(software engineering) Resistant or impervious to failure regardless of user input or unexpected conditions.

(statistics) Not greatly influenced by errors in assumptions about the distribution of sample errors.

Adjective

(en adjective)

Not expressing normal physical feeling

* 1897, Bram Stoker, Dracula

It is something like the way dame Nature gathers round a foreign body an envelope of some insensitive tissue which can protect from evil that which it would otherwise harm by contact.

Not expressing normal emotional feelings; cold; tactless; undiplomatic

* 1895, Grant Allen, The British Barbarians

Somehow, when Bertram Ingledew let it once be felt he did not wish to be questioned on any particular point, even women managed to restrain their curiosity: and he would have been either a very bold or a very insensitive man who would have ventured to continue questioning him any further.

* 1994, Jann Arden, "Insensitive" (song)

Oh I really should have known by the time you drove me home, / By the vagueness in your eyes, your casual good-byes, / By the chill in your embrace and the expression on your face, / That told me you might have some advice to give / On how to be insensitive .