The doubtlessness of her testimony convinced the jury of his innocence.

His doubtless expertise during the crisis reassured everyone in the office.

She was doubtless the most experienced hiker in the group, leading everyone through the fog.

She looked doubtfully at the weather forecast before deciding whether to cancel the picnic.

She doubtlessly remembers the route to the cabin, so we can follow her lead.

She looked at the old map doubtingly before deciding which path to follow.

She doubteth her own memories after the storm erased so many details, yet she clings to fragments of what she once knew.

His deep fly to right field was a no-doubter.

If thou doubtest my loyalty, let my deeds convince thee.

The consultant's careless remarks made him a doubtee among the board members.