Words
Forestall
prevent or restrict
Synonyms:avert
Forlorn
alone and uphappy; left alone and not cared
"She looked a forlorn figure standing at the bus stop"
Forswear
to strongly reject or give up something, especially a belief or habit
"He forswear junk food to stay healthy"
Synonyms:abandon, renounce, forgo, abjure, reject, relinquish
Forthright
Synonyms:frank, straightforward, candid, over spoken
Antonyms:dishonest, devious
Fortuitous
happening by chance rather than intention
Synonyms:accidental
Fossilize
Synonyms:amalgamate, combine
Foster
encourage the development of something
"The teacher's task is to foster learning"
Synonyms:encourage
Founder
(of a ship) fill with water and sink
"The ship foundered off the coast"
Synonyms:sink, submerge
Fraught
Synonyms:anxious, worried, upset, distraught
Fray
a situation of intense activity or competition
Synonyms:battle, conflict, dispute
Freezing
Antonyms:tropical
Frenetic
fast and energetic in a rather wild and uncontrolled way
Synonyms:frantic, wild, frenzied, hectic
Fret
nervous or worried
"Don't fret - I'm sure he's OK"
Friar
Synonyms:monk
Fright
a sudden intense feeling of fear
Frisk
to move around in a happy, energetic way
Synonyms:frolic, gambol, cavort
Fritter
divide (something) into small pieces
Antonyms:hoard, amass
Frivolous
not having any serious purpose or value
"They waste their time and money on frivolous things"
Synonyms:flippant, insignificant
Antonyms:important, significant
Fugitive
a person who has escaped from captivity or is in hiding
Synonyms:escapee, runaway
Fulminate
express vehement protest
Synonyms:protest, rage, inveigh