-ular
- to form adjectives from nouns
cellular, curricular, granular, modular, molecular, muscular, valvular, circular, rectangular, triangular
ultra-
- to form adjectives from adjactives
ultra-cautious, ultra-clean, ultra-conservative, ultra-fast, ultra-high, ultra-intelligent, ultra-light, ultra-low, ultra-modern, ultra-powerful, ultra-rich, ultra-secretive, ultra-sharp, ultra-smart, ultra-smooth, ultra-sophisticated
un-
- to form adjectives, nouns and adverbs with the opposite meaning
unable, unacceptable, unalive, unalterable, unbelievable, unbiased, uncertain, unlcean, uncomfortable, unconscious, uncooperative, undemocratic, uneatable, unemotional, unemployed, unfaithful, unfortunate, unhappy, unhelpful, unkind, unlucky, unnatural, unnecessary, unoficial, unpleasant, unpredictable, unrealistic, unremarkable, unsafe, unsuccessful, untidy, unusual, unwilling
- to form adjectives from participles
unbeaten, unbuilt, uncaring, unchanging, undamaged, undemanding, undisturbed, unexpected, unharmed, unhesitating, uninterrupted, uninviting, unloved, unneeded, unoffending, unpainted, unprepared, unread, untaught, untrusting, unwritten
- to form verbs
unbend, uncover, undo, undress, unlearn, unlock, unmake, unpack, unplug, unscrew, untie, unwrap, untwist
under-
- to form verbs, nouns and adjectives
underdeveloped, under-equipped, underestimate, under-financed, undergrown, underpay, underpriced, undersize, undervalue, underweight
- referring to words denoting that something is beneath something else or that something happens below something else
underarm, underblanket, underclothes, underfoot, underground, underline, underlip, underpass, underscore, underside, under-soil, undersurface, underwater, underwear
- to form nouns referring to lower rank or status than someone else
under-butler, under-footman, undergraduate, under-manager, under-secretary, underservant, undersheriff
uni-
- referring to words with 'one' or 'single' as part of their meaning
uniform, unilateral, union, unique, unite, unity
up-
- to form words which indicate that a person or thing is moving towards higher position or is situated in a higher position
up-current, upfield, unhill, upland, upriver, upside, upstage, upstairs, upstream, upwards, upwind
- to form verbs and nouns
update, upgrade, uprate, upturn
- to form verbs, nouns, and adjectives describing some disturbance, trouble
upbeat, upbringing, upcoming, upheaval, uphold, upkeep, uplift, upmarket, upright, upstanding, uptake
-ure
- to form nouns from verbs
closure, composure, departure, disclosure, enclosure, expenditure, exposure, failure, mixture, pleasure, procedure, sculpture, seizure
