painful
A synonym of difficult is arduous.
difficult
difficult, strenuous,
difficult, hard, laborious, tough
a synonym for rare is scarce; difficult to find; not plentiful
Hard is a synonym for tall when tall means difficult or not easy. For example, that is a hard (i.e., tall or difficult) order to follow.
Skill
Bravery.
Unusual is a synonym for not ordinary.
A synonym of difficult is arduous.
difficult
difficult
Hard ! :)
A synonym for extremely difficult question can be exceptionally tricky problem requiring an answer.
Antique has a synonym of obsolete. Obsolete has a synonym of outmoded. Since outmode is a transient verb it is always conjugated. But outmode is a word, it is 7 letters and it is a synonym for antique.
light, rough, difficult , lifted
A synonym of "friendy" that contains 7 letters is affable. :)