Synonyms:
- believingly,
- devoutly,
- in installments,
- on account,
- on budget terms,
- on credit,
- on easy terms,
- on faith,
- on good terms,
- on terms,
- on the cuff,
- on tick,
- piously,
- trustfully,
- trustingly,
- undoubtfully,
- undoubtingly,
- unquestioningly,
- unsuspectingly,
- unsuspiciously,
- upon trust,
- with confidence,
- with faith,
- without doubt