Preferably

1 clue
Rather
Similar answers:
Admirably
Adorably
Andsomeprefertoheatit
Aprefectspy
Drably
Durably
Favorably
Fordprefect
Inexorably
Iprefer
Ipreferfastfood
Ipreferpi
Ispreferred
Prefect
Prefer
Preferably
Preference
Preferences
Prefergentlemen
Preferred