skepticize (verb) doubt: lack confidence in; question
Sinonime: be apprehensive of, be curious, be dubious, be in a quandary, be puzzled, be uncertain, be undetermined, call in question,
challenge,
demur, disbelieve,
discredit,
dispute,
distrust,
fear,
fluctuate, give no credence, harbor suspicion, have qualms,
hesitate,
imagine,
impugn,
insinuate, misdoubt, misgive, mistrust, not buy,
query, read differently, scruple, shilly-shally, skepticize, smell a rat,
surmise,
suspect, take dim view of,
vacillate,
waver, wonder at
Antonime: be certain,
believe, not question,
rely,
trust