Not suited to circumstances
Lacking style and good taste
Not in keeping with conventional mores
having once suspected that he had done anything unbecoming a king by divine right and a gentleman.
Though other forms of literature might be thought unbecoming to the dignity of a free-born citizen, this was never so with history.
Romas had tossed her in bed more than once over the past three months, though he had stopped lecturing her on how unbecoming a lush was to a man looking for a wife.
Many strapless gowns have a lot of construction needed to hold the top in place, often creating a boxy, broad-shouldered look or an unbecoming bulging area across the back.
Admitting that the fable of the battle of the gods was " unbecoming," if literally understood, Theagenes represented it as an allegorical account of the war of the elements.