(p. 56) abiśbāsa distrust, mistrust; incredulity; disbelief; want of conviction or faith; no-confidence; suspicion. অবিশ্বাস করা v. to distrust, to look on with distrust; to disbelieve; to have no faith or confidence in; to treat with suspicion, to suspect. অবিশ্বাসী a. untrustworthy, unfaithful, unreliable; perfidious; distrustful; incredulous; disbelieving; lacking in conviction or faith; suspicious; (esp. in phil.) sceptical. n. a doubter, a disbeliever; (phil.) a sceptic. fem. অবিশ্বাসিনী । অবিশ্বাস্য a. incredible, unbelievable. 123)

(p. 542) dhut a sound expressing: repulsion, aversion, slight mistrust etc; sh, pish, psh, bosh. 18)