The Prophet ﷺ was shier than a veiled virgin girl.  

عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ ؓ قَالَ كَانَ النَّبِيُّ ﷺ أَشَدَّ حَيَاءً مِنَ الْعَذْرَاءِ فِي خِدْرِهَا  

The Prophet ﷺ never used bad language neither a "Fahish nor a Mutafahish. He used to say "The best amongst you are those who have the best manners and character." (See Hadith No. 56 (B) Vol. 8)  

لَمْ يَكُنِ النَّبِيُّ ﷺ فَاحِشًا وَلاَ مُتَفَحِّشًا وَكَانَ يَقُولُ إِنَّ مِنْ خِيَارِكُمْ أَحْسَنَكُمْ أَخْلاَقًا