1. (noun) a thin strong lightweight translucent paper used especially for making carbon copies

• onionskin

2. (adjective) not convincing

• unconvincing

3. (adjective) lacking substance or significance

• fragile
• slight
• tenuous
• thin

1. (adjective) not convincing

• incredible
• unbelievable

1. (adjective) lacking solidity or strength

• weak

2. (adjective) not convincing

• unpersuasive

3. (adjective) lacking substance or significance

• insignificant
• unimportant

1. (noun) a thin strong lightweight translucent paper used especially for making carbon copies

• typewriter paper
• typing paper

1. (adjective) not convincing

• convincing

1. (adjective) lacking solidity or strength

• flimsiness
• shoddiness
• onionskin

2. (adjective) not convincing

• flimsiness
• shoddiness

3. (adjective) lacking substance or significance

• feebleness
• tenuity
• pettiness
• puniness
• slightness
• triviality
• spareness
• sparseness
• sparsity
• thinness