42impair damage,diminish,decrease
43hinder impede,prevent,deter,obstacle 44legitimate legal
45limitation restriction
46convention method,traditon
47demanding troublesome
48determine decide
49accelerate speed up
50ancient aged,old
51beneficial helpful,advantageous,wholesome 52chronic lasting
53conscious aware,knowing
54minimize reduce,lessen
55immunity resistance
56imperactive compelling,necessary,urgent
57secrete discharge,exude
58exaggerate overstate
59transmit pass,send,transfer
60extinct die out,lost
61exclusive only
62guarantee assure
63inherit receive
64witness view,see
65magnetic attractive
66loss waste,gone
67option choice
68prefer to rather
69priority preference,preferential
70primary principal,main
71principle rule
72potential possibility
73quantity number
74settle fix,figure out
75sophistiate complicate
76specific detailed,particular
77survive remain
78swift quick,rapid
79unexpectedly surprising
80surrounding setting,environment
81attempt try,test
82expertise knowledge,skill
83faculty ability
84donate contribute
85dynamics energy,force,move
86incentive motive,stimulus
87mortality death
88peripheral unimportant,minor
89vicinity neighbourhood,nearby
90threaten endanger,jeopardize,risk,hazard 91practice method,exercise
92bacteria virus,germ,microbe