To loom: to appear
1. to appear as a large,
     often frightening or unclear shape or object
    Dark clouds loomed on the horizon.
  2. If an unwanted or unpleasant event looms,
     it seems likely to happen soon and causes worry:
     Our exams are looming
Scruffy: dirty looking
A scruffy man leaning the Wall
Sullen: angry and unwilling to smile or
be pleasant to people
Sullen man refused to smile.
Glower at someone
There is no reason to glower at me.
Eloquence: belagat/hitabet
Eloquence: hitabetli
be versed in something: to know about something
I’m not versed in mathematics to solve that equation
Frivolous: behaving in a silly way and not taking
anything seriously
Frivolous lawsuits
To smirk: to smile that implies you have achieved or done something
successfuly