His speech was full of affectation.

Boasting : excessively proud and self-satisfied talk about one's achievements, possessions, or abilities.
Pretence : an attempt to make something that is not the case appear true.
Pedantry : excessive concern with minor details and rules.
Euphemism : a mild or indirect word or expression substituted for one considered to be too harsh or blunt when referring to something unpleasant or embarrassing.
Affectation : behaviour, speech, or writing that is pretentious and designed to impress.

Synonym of Affectation is Pretence