There are words that Begin with the prefix tri- like: Triangle, Tripod, Tricycle, and Triceratops
octagonoctaneoctaveoctet
Archetypal, archeology
Polysaccharides, polygon, polytheism.
Unorganized, Unauthorized, Unavailable, Unfortunately, Uncomfortable, Unbelieveable, Unsightly, Unexpected, unprecedented, unsurpassed, unusual, unique, unforgettable, unpredictable
Some words that use the prefix 'un' are:unableunbelievableunconsciousundeniableunendingunfurledungainlyunholyunimaginableunjustunknownunlovedunmeritedunnoticedunownedunprovenunquietunrestunsinkableuntidyunusedunvariedunwantedunexplained (OK, so I cheated a little)unyieldingunzip
Unknowable is one. UN and ABLE.
unbelievable, unusual, unnatural, uneven, unwarranted
some words are unhappy, disapprove,dislike,unlock,reconstruct,redo,replace,unpaid,disorder,rebuild,restart,unload,repeat,disappear unlikely,unequal,reverse,undo. i hope this helped you.
unfit
No, "un-" is a prefix that is added to words to indicate a negation or reversal of the word's meaning. "Unbelievable" is a word itself, formed by adding the prefix "un-" to "believable."
The prefix of "sign" is "un-" and the suffix is "-ed."
un is the prefix of familiar so there is no prefix for an already prefixed word
Words with prefix un include unhappy, unsanitary, unwell, undone, uncompromising, unbelievable, unsettling, unassuming, unimaginative, unsaid... Many adjectives can be formed by adding the prefix un- to another adjective (that does not have a prefix already).
You could add the prefix -un and the suffix -ed to make the word "un-vindicated."
The prefix for unsuspecting is "un-".
No