(a feeling of) uncertainty

lack of faith, conviction; questioning

(of things known by the senses) weak; not clear

having little effect on senses

hesitating; uncertain

hesitant

tending to hesitate

uncertain, waiting

the state of hesitating

waiting; uncertainty

(of speech) not clear or distinct; not jointed

unable to speak well

nor coherent

unintelligible

not decisive

uncertain, indefinite

physically or mentally weak (especially through age)

sick, weak

contrary to rules, to what is normal and established

random, variable

(a feeling of doubt caused by) a troubled conscience

misgiving, doubt

(of a person, movements etc) weak; unsteady; unsafe

trembling