fortissimo
- n (music) loud
- s chiefly a direction or description in music
- r a direction in music; to be played very loudly
fortnightly
- s occurring every two weeks
- r every two weeks
he visited his cousins fortnightly
fortuitous
- s having no cause or apparent cause
fortuitous encounters--strange accidents of fortune - s occurring by happy chance
profits were enhanced by a fortuitous drop in the cost of raw materials
fortunate
- a having unexpected good fortune
other, less fortunate, children died
a fortunate choice - s supremely favored
- s presaging good fortune
she made a fortunate decision to go to medical school