1. (adjective) characterized by a firm and humorless belief in the validity of your opinions

• earnest
• solemn

1. (adjective) open and genuine; not deceitful

• artless
• ingenuous
• echt
• genuine
• existent
• real
• honest
• honorable
• true

1. (adjective) open and genuine; not deceitful

• bona fide
• cordial
• dear
• devout
• earnest
• heartfelt
• genuine
• true
• unfeigned
• heart-whole
• whole-souled
• wholehearted
• honest

2. (adjective) characterized by a firm and humorless belief in the validity of your opinions

• serious

1. (adjective) open and genuine; not deceitful

• sincerity

2. (adjective) characterized by a firm and humorless belief in the validity of your opinions

• earnestness
• earnestness
• serious-mindedness
• serious-mindedness
• seriousness
• seriousness
• sincerity
• sincerity
• earnestness
• seriousness
• sincerity
• gravity
• solemnity
• sedateness
• solemness
• solemnity
• staidness

1. (adjective) open and genuine; not deceitful

• insincere